To start Nero DiscSpeed via Nero StartSmart, proceed as follows:
1. Click the Nero StartSmart icon.
The Nero StartSmart window opens.

2. Click the

button.
The list of Nero applications is displayed.

Nero StartSmart window

3. Select the Toolbox > Nero DiscSpeed entry in this selection list. 4. The Nero DiscSpeed window opens.
You have launched Nero DiscSpeed via Nero StartSmart.

Main Screen

The Nero DiscSpeed main screen is the starting point for all actions that you perform using Nero DiscSpeed. The drop-down menu lists the optical drives available on the computer using their exact model designations. It also displays the version number of the firmware installed on the drive. You can switch between five tabs within the main screen. These tabs are used to carry out the different tests and to display information regarding them.
The menu bar in the main screen has four menus. The following entries are available in the File menu: Load Results Contains the following two sub-entries: Load Single File and Database. Load Single File: Loads a saved test file. Database: Loads several files at the same time. This way, you can compare test results and/or the efficiency of optical drives. Only test files saved as binary files with the extension *.dat can be loaded again.
Main Screen Save Results Contains the following three sub-entries: Binary (.dat), Text (.csv), and HTML. Binary (.dat): Saves the test results as a binary file. Only test files saved as binary files with the extension *.dat can be loaded again. Use this format if you want to open the test results in Nero DiscSpeed or in the Nero DiscSpeed database and compare them. Text (.csv): Saves the test results as a text file that you can open with any text editor. HTML: Saves the test results in a diagram that you can open with any Web browser. In the Options window, under the Save navigation entry, you can define how much data will be saved in the file. If the Include status check box is enabled, the diagram and all other test results are saved; if it is cleared, only the graph is saved. Options Opens the Nero DiscSpeed - Options window, where you can define settings for the user interface, for the save function, and for various tests. Exits Nero DiscSpeed.
The following entries are available in the Run Test menu: Selected Starts a standard test series. All standard tests that you selected in the Nero DiscSpeed - Options window, under the Standard Tests navigation entry, are run. Starts the standard test series. All the standard tests that are listed in the Nero DiscSpeed - Options window, under the Standard Tests navigation entry, are run. Starts the transfer rate test. Starts the DAE quality test. Starts the access/seek times test. Starts the CPU usage test. Starts the burst rate test. Starts the spin up/down test. Starts the load/eject test. Starts the create data disc test.

Button Background 1 Button Background 2
Button Grid (primary) Button Grid (secondary) Button Speed Button RPM Button Buffer level Button CPU usage
Nero DiscSpeed Options Window Check box Show horizontal grid Check box Show vertical grid Shows the horizontal grid lines in the graph area or hides them. This box is checked by default. Shows the vertical grid lines in the graph area or hides them. This box is checked by default.
Standard Tests Navigation Entry
The Standard Tests navigation entry offers setting options in the Selected tests, Speed, and Spin-up time areas.
Nero DiscSpeed - Options - Standard Tests navigation entry
In the Selected tests area, you can define the standard tests that are run automatically if you click the Start button on the main screen or the menu item Run Test > Selected. These tests are run on the Benchmark tab. All tests are activated by default. The following setting options are available: Check box Transfer rate Adds the test to the standard test series. The Transfer rate test measures the read speed of data, i.e. the speed at which data is read from a disc. If the disc inserted is blank, the test measures the write speed. Adds the test to the standard test series. The DAE quality test comprises two partial measurements.

Check box DAE quality

Nero DiscSpeed Options Window Check box Access/Seek Times Check box CPU usage Check box Burst Rate Check box Spin Up/Down Adds the test to the standard test series. The Access/seek times test measures the access or seek times of optical drives for discs inserted in the drive in three partial measurements. Adds the test to the standard test series. The CPU usage test measures the percentage utilization of the CPU (central processing unit) at various speeds (1x, 2x, 4x, and 8x). Adds the test to the standard test series. The Burst rate test measures the maximum possible transmission rate from the optical drive to the computer. Adds the test to the standard test series. The Spin down test measures how long it takes an optical drive to stop, while the Spin up test measures how long it takes before the optical drive can read data again after stopping. Adds the test to the standard test series. The Load/eject test measures the time that an optical drive needs to load, detect, and eject a disc. Adds the test to the standard test series. The Extra read tests test series consists of three tests. One or more sectors on the disc are read with defined test samples. Adds the test to the standard test series. The Create data disc test is available in its classic version on the Benchmark tab and as an advanced version on the Create Disc tab. You can use the classic test to analyze the write speed and the rotational speed. You can use the advanced test to also measure the buffer level and the CPU usage caused by the optical drive. Checks the data that was written on the disc during the Create data disc test.

Check box Show RPM Menu Maximum speedCD/DVD Maximum speedCD/DVD
Check box Show minimum/maximum
The following setting options are available in the Write options area: Area Write mode Selects the SAO (Session-At-Once) or TAO (Track-AtOnce)write mode for discs. You can also enable the Overburn CD and Overburn DVD check boxes in Session-At Once mode. Enter the exact data quantity in the corresponding input fields. Area Disc type Check box Buffer underrun protection Enables protection against optical drive buffer underrun. Buffer underrun protection is enabled by default. We recommend that you leave this box checked. Enables burning simulation for either data or audio discs.
Nero DiscSpeed Options Window Check box Streaming Streaming can more than double the write speed. However, it can have a negative effect on the quality of the disc, since the disc is not checked during the burn process and defective sectors are not re-written. This box is cleared by default, in other words verification is enabled. If this check box is enabled, verification will be disabled for DVD-RAM and Blu-ray discs. Check box Direct overwrite If this box is checked, rewritable discs will be directly overwritten without having to delete old data first. If this box is not checked, a dialog box will notify you when a disc containing data is inserted for writing. If this check box is enabled, Nero DiscSpeed will run through the Create data disc test by creating an image file (ISO or NRG). If this check box is not enabled, Nero DiscSpeed will run through the same test by burning binary data until the maximum capacity of the disc is reached. Check box Include test data If this check box is enabled, additional information about the test (information on the optical drive, the installed firmware, and the burn process graph) will be burned to the disc.
Check box Burning an image file
See also: Transfer rate 26
Access/Seek Times Navigation Entry
The Access/Seek Times navigation entry offers setting options in the Measure and Number of operations areas specifically for the Access/seek times test.

Nero DiscSpeed Options Window Continuously run selected tests Defines how many times the tests selected under the Standard Tests navigation entry will be run. The following options are available if this box is checked: Delay between test runs - Defines the length of the delay between two test runs. Number of test runs - Defines how many times the tests will be repeated. If the value selected is 0, the tests will be repeated until you manually stop them. See also: Standard Tests Navigation Entry 13

Disc Quality Entry

The Disc Quality navigation entry offers setting options for the quality test in the General, QuickScan, Diagram Margins and Colors.
Nero DiscSpeed - Options - Disc quality navigation entry
The following check boxes are available in the General area: Determing the speed The speed the Disc Quality is tested, can change with the choosed optical drive. The speed is connected to the recorder model and the installed firmware. If the check box is active, Nero DiscSpeed automatically detects the speed, as soon as the Disc quality tab in the main screen is selected. If this box is not checked, the speed must be manually detected.
Nero DiscSpeed Options Window Show error limits Shows the intervals in the diagram of the graphical representation in colored graduations. Depending on the optical drive model and the intervals at which they occur, detected errors can be classed at a glance as permissible, tolerable, or unacceptable. Show statistics Show disc label Shows a statistical overview of the results at the end of the test. Shows the disc label on the Disc Quality tab.
In the QuickScan area you can define the options for the quick scan. The Disc Quality could be executed as complete scan. You can choose between the quick and the full scan on the Disc Quality tab. The quick scan only checks defined points on the disc. All other areas are ignored. As a result, it requires less time than a complete scan but is less accurate. Measure points Sample Length Defines how many points on a disc will be checked during the quick scan. Defines the size of each scan point in MB.

In the Diagram Margins area you can define the maximum scale limits for the graphical representation of the error curves. The following setting options are available: Option button Automatic Automatically adapts the graduated scale values to the number of errors measured. A value of 10 is defined as the initial value for both C1 Errors/PI Errors and for C2 Errors/PI Failures. If more errors are found, Nero DiscSpeed automatically adapts the scales to the higher value. Option button Fix Selection area Maximum CD speed Defines the maximum values on the scales as locked. Enter the values you want in the C1 Errors/PI Errors and C2 Errors/PI Failures text boxes. Defines the maximum value that will be displayed in the C1 Errors/PI Errors curve for write and read speeds. This value is separately defined for CDs and DVDs.
In the Colors area you can define the colors on the Disc Quality tab in the main screen. The following setting options are available: Menu Topic Selects the desired theme. In addition to predefined themes, you can also set colors with the User-defined entry. To manually edit a color, click the colored tile and select the color you want in the dialog box that appears. Changes the basic color in the background of the graph area.

Button Background 1

Nero DiscSpeed Options Window Button Background 2 Changes the basic color for shading in the background of the graph area. Only works when the Background 2 check box is enabled. Otherwise, the background of the graph area is displayed in one single color. Changes the colors for the coarse grid in the graph area. Only works when at least one of the following check boxes is enabled: Show horizontal grid and/or Show vertical grid. Changes the color for the fine grid in the graph area. Only works when at least one of the following check boxes is enabled: Show horizontal grid and/or Show vertical grid. Line signifying the C1 errors/PI errors in the graph. Line signifying the C2 errorsPI errors in the graph. Representation of Jitter in the graph. Line signifying the Read speed in the graph. Line signifying the write speed in the graph. This curve will only be displayed if the Include test data box has been checked under the Transfer Rate navigation entry. Shows the horizontal grid lines in the graph area or hides them. This box is checked by default. Shows the vertical grid lines in the graph area or hides them. This box is checked by default.
Button Grid (primary) Button Grid (secondary) C1/PIE C2/PIF Jitter Read speed Write speed
Check box Show horizontal grid Check box Show vertical grid

If this check box is enabled, Nero DiscSpeed writes an image file that you Burn image have selected to the recordable disc instead of writing previously defined binary data. Check box Simulate If this check box is enabled, Nero DiscSpeed simulates the process to create all the test results instead of writing data on the recordable disc.
The test results are also displayed in the Speed, Buffer, CPU Usage, and Progress areas to the right of the graph. The following areas are available: Speed Shows the partial results of the speed test. Current/Average shows the varying speed over the course of the test. The average speed is displayed here when the test is finished. Start - Shows the lowest speed detected over the course of the test. In a normal curve, the lowest speed is also the start speed. In an uneven curve, the lowest recorded speed is displayed here as the minimum value. Type - Shows the type of rotational speed. End - Shows the highest speed determined over the course of the test. In a normal curve, the highest speed is reached at the end. In an uneven curve, the highest recorded speed is displayed here as the maximum value.
Create Disc Tab Buffer Shows the percentage usage of the buffer during the write test, both graphically in the bar and numerically beside it. The values for the minimum buffer level, the maximum buffer level, and the average buffer level are listed below from left to right. These values are continuously refreshed over the course of the test. If the Show graph check box is enabled, a representation of the buffer level is plotted on the graph. The small colored square to the left shows the color of the line. You can change this color according to your requirements in the options under the User Interface navigation entry. CPU usage Shows the CPU usage during the write test graphically in the bar and numerically beside it. The values for the minimum CPU usage, the maximum CPU usage, and the average CPU usage are listed below from left to right. These values are continuously refreshed over the course of the test. If the Show graph check box is enabled, a representation of the CPU usage is plotted on the graph. The small colored square to the left shows the color of the line. You can change this color according to your requirements in the options under the User Interface navigation entry. Progress Position continuously indicates the current position of the read head on the disc during the write process. Elapsed specifies in minutes and seconds the time elapsed since the write process started. See also: Create Data Disc (Classic Version) 30

The Disc info area shows general information on the disc in the drive. The following display panels are available: Type ID Date Shows the disc type of the disc in the drive. Shows the media code of the disc. Shows the date when the disc was created/burned. If an image file was burned to the disc, this display panel shows the date on which the image file was created. Shows the disc label of the disc in the drive. If you do not want to show the disc label, disable the Show disc label box in the options under the Disc Quality navigation entry. If the Include test data check box has been enabled in the options under the Transfer Rate navigation entry, an additional display panel showing information on the recorder and the firmware used to burn the disc in the drive is shown above the graph. The following display panels are available in the Position area while the test is running: Progress Position Speed Shows the progress of the test, i.e. the percentage of the disc already scanned. Continuously indicates the current position of the read head on the disc. Shows the scanning speed.
ScanDisc tab The following information is available in the columns in the display panel: File Position Length Quality PIE PIF POE POF Jitter Lists the names of the files on the disc in the drive. Shows the respective position of the file on the disc. Shows the length of the individual files. Specifies the quality of the files. This score is calculated from the number of errors found. Specifies the number of PI errors found. Only available for the C1/C2 P1/PO test. Specifies the number of PI failures found. Only available for the C1/C2 P1/PO test. Specifies the number of PO errors found. Only available for the C1/C2 P1/PO test. Specifies the number of PO failures found. Only available for the C1/C2 P1/PO test. Specifies the jitter values. Only available for the C1/C2 P1/PO test. Not all recorders can measure jitter values. This column is omitted if the recorder in question cannot measure the values.
See also: Transfer Rate Navigation Entry 15
Running the ScanDisc Test
The ScanDisc test can be run in two versions: as a read test and as a C1/C2 PI/PO test. The following requirement must be fulfilled: The ScanDisc tab is selected in the main screen. To start the ScanDisc test, proceed as follows:

1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert a disc into the optical drive. 3. Select the speed with which you want to run the test from the Speed drop-down menu. 4. If you want to run the test as a read test, select the Read test option button.
If you want to run the test as a C1/C2 - PI/PO test, select the C1/C2 - PI/PO test option button.
5. Click the Start button.
The test is run. You can follow the test processes in the areas under and next to the
graph. You can cancel the running test at any time by clicking the Stop button. them.
Advanced DAE Quality Test
The Advanced DAE Quality Test is different from the standard DAE Quality test. With a special test disc, the advanced test identifies problems that your optical drive may have when reading an audio CD. You can run the test in two steps, depending on whether you first want to create a test CD and then test it or you already have a suitable test disc with which you can start the test directly. In addition, the Error test lets you determine the capabilities of an optical drive to prevent errors when creating a copy. See also: Creating a Test Disc 50 Running the Advanced DAE Quality Test 52
10.1 Nero DiscSpeed Window - DAE Test Disc
You can create a test disc in the Nero DiscSpeed - DAE Test Disc window. You can define preferences for the burn process in the top area of the window. Information on the write process in progress and on the disc in the drive is displayed in the Write position and Disc information areas as well as in the display area at the bottom of the window.
Nero DiscSpeed Window - DAE Test Disc
Advanced DAE Quality Test The following setting options are available: Menu Write speed Input field Test capacity Check box Simulate Check box RAW mode The following information on the write process in progress is displayed in the Write position area: Position Relative Continuously indicates the current position of the read head on the disc. Always indicates the percentage of the disc that has already been written. Indicates the burn progress. The following information on the disc in the drive is displayed in the Disc information area and in the display area: Capacity Shows the disc capacity both in MSF (minutes/seconds/frames) and in MB. Maximum specifies the maximum volume of data that can be written to the disc with the help of additional capacity achieved through overburning. Extra - Shows the difference between normal capacity and maximum capacity. Manufacturer Dye type Disc type Shows the manufacturer's name. Shows the dye type used. Shows the disc type of the disc in the drive. If this check box is enabled, Nero DiscSpeed simulates the burn process rather than writing data to the recordable disc. This box is checked by default and cannot be cleared. If this box is checked, the disc will be burned in RAW mode. Defines the speed at which the disc is burned. We recommend that you choose a speed of 16x or less when burning an audio CD. Shows the disc capacity in MSF (minutes/seconds/frames).

10.5.1 Advanced DAE Error Correction Test Window
The Error test is run in the Nero DiscSpeed - Advanced DAE Error Correction Test window. The results are displayed in the C2 errors and Compare errors graphs, as well as in the display areas underneath, while the test is still in progress. The top graph shows C2 errors found on the disc. The bottom graph compares the errors found when Nero DiscSpeed compares the data on the disc with the data from the image file.
Nero DiscSpeed window- Advanced DAE Error Correction Test
The following fields are available in the areas below the graphs: Position Elapsed C2 accuracy Quality score C2 errors C2 missed Compare errors Continuously indicates the current position of the read head on the disc over the course of the write process. Specifies in minutes and seconds the time elapsed since the write process started. The C2 accuracy of the optical drive is determined based on the results of the test. A percentage is calculated based on the results of the test. A quality index of 100% is perfect, i.e. there were no errors. Shows the number of C2 errors found. Shows the number of C2 errors missed. Shows the number of compare errors found. Compare errors occur when the audio data read out does not match the compare data from the image file. Sync Errors Shows the number of synchronization errors found. Synchronization errors occur when data is correct but has been moved by one or more sectors.

10.5.2 Create Image

The Create Image feature lets you extract data from an A-BEX disc in order to create an error-free image file on the hard drive - provided the optical drive can create the file from the data provided. To create an image file of the test disc, proceed as follows:
1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert an A-BEX disc in the optical drive. 3. Click Extra > Advanced DAE-Quality Test > Error Tests > Create Image.
The Nero DiscSpeed - Advanced DAE - Create Image window opens.
4. Click the Start button.
The image file of the test disc is created. You can follow the progress of the write process with the progress bar, and can cancel the process at any time by clicking the Stop button.
A dialog box opens that informs you whether the image file has been successfully cre-
ated. You have created an image file of the test disc and can now use it to proceed with the second part of the error test, Run Test.
See also: Running the Test with an A-BEX Test Disc 55
10.5.3 Running the Test with an A-BEX Test Disc
The Run Test feature reads the data on an A-BEX disc and compares it to an image file of the same disc. This test ensures that the copy created is perfect. The following requirement must be fulfilled: The image file of the test disc must be saved on the hard drive. To compare the test disc to the associated image file on the hard drive, proceed as follows:

1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert an A-BEX disc whose image file is already on the hard drive into the optical drive. 3. Click Extra > Advanced DAE Quality Test > Error Test > Run Test.
The Nero DiscSpeed - Advanced DAE Error Correction Test window opens.
4. Some optical drives show C2 errors in reverse order. If you want to correct this, enable the

Reverse C2 check box.

The test is run. The graphs and the areas underneath indicate the progress. You can
cancel a running test at any time by clicking the Stop button. them.
Advanced DAE Quality Test See also: Saving Test Data 61 Create Image 55
10.5.4 Running the Test with a DAE Test Disc
Instead of using an A-BEX disc, you can also run a limited version of the Error test by using a DAE test disc that you have previously created. In this case it is not necessary to create an image file, since Nero DiscSpeed already knows the content of the comparison disc. To run the test, proceed as follows:
1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert a DAE disc in the optical drive. 3. Click Extra > Advanced DAE Quality Test > Run Test.
The test is run. You can cancel a running test at any time by clicking the Stop button. You can now see the results of the test in the graphs and the relevant displays and save
them. See also: Saving Test Data 61 Creating a Test Disc 50

Overburning test

Not all recorders support overburning. Note that overburning can damage an optical drive. To prevent damage to the optical drive, you should only use this feature with suitable discs. Note that a disc whose leadout has been written to no longer conforms to the standard specification for CDs, and therefore may not be detected by some readers. Overburning is the process of writing data past the official capacity of the disc in the CD's leadout area. The actual purpose of the leadout area is to define where the disc ends. By filling part of the leadout with data instead of zeros it is possible to increase the disc's capacity. Usually it is possible to overwrite the 90 seconds of the leadout without any difficulty. Nonetheless there is a high probability that the data will become unreadable since the area was originally intended for storing only zeros and is at the outer edge of the disc. This part of the disc is more likely to become damaged or soiled. Overburning is also possible, although not advisable, with DVD's. The outer edge of DVD's is more susceptible to errors. Furthermore only a small number of DVD recorders support this feature. The Overburning Test feature lets you run a simulation of the overburn process and test whether or not the recorder is suitable for this process. Nero DiscSpeed also checks how much data can be written to the disc being used. If you want to test the overburn capability of a disc and your recorder in a real burn process, enable the Overburn CD or Overburn DVD (depending on the disc type) check box under the Transfer Rate navigation entry, in the Nero DiscSpeed Options window. After this, start the Create data disc standard test. See also: Transfer Rate Navigation Entry 15 Create Data Disc (Classic Version) 30

Buffer

A buffer refers to temporary memory that records and delivers data that cannot be processed immediately as required. The buffer also allows for continuous data flow.

C2 errors

A C2 error describes the error rate on the lower layers of a burned CD that are automatically corrected during reading. Every recordable disc features these errors; the fewer they are, the better the quality. High C2 error rates indicate burn problems or quality flaws.

CD Text

CD Text consists of additional information on a CD that can store e.g. music track titles and artists. CD Text is stored in the so-called lead-in area of the CD before the audio data starts. The display on the CD player shows the additional data. You must have a CD burner which supports CD Text to enable the CD Text to be written to a CD. In particular, CD Text can only be written in disc-at-once mode.
The central processing unit processes a computer's processes. The higher the computing performance, the higher the load of the CPU and its performance.
DAE (Digital Audio Extraction) refers to the process of reading audio files with a drive. DAE quality indicates how well a drive reads data on a CD.

Disc type

Disc type refers to different optical storage media with different specifications. The best known are CD's and DVD's that can be written to once or multiple times, and which are manufactured with different storage capacities.

Dual Layer Disc

A dual layer disc refers to a DVD that uses two layers on one side, which increases its storage capacity.

DVD-RAM

Digital Versatile Disc Random Access Memory is the first rewritable data carrier format developed. It is characterized by a distribution of sectors that makes it possible to achieve increased data integrity, quicker formatting, and improved error management in comparison to DVD+/-RW.

Dye type

There are different materials of different colors that are used to produce storage media. The laser-sensitive and data-carrying dye layer can e.g. be made of phthalocyanine or formazan.

Firmware

Firmware is software that has been installed on hardware during production (e.g. recorder, USB device, etc.). It is used for communication between the respective hardware and other software, e.g. when a USB device is connected to a PC.

Jitter

Jitter refers to an abrupt and undesired change in the signal characteristics. Small gaps occur in the data stream as a result. Audio correction synchronizes the data by overlapping the sectors. This way, the gaps are not audible.

Revolutions per minute (RPM) is an English unit that is used in mechanics to represent rotational speed. It indicates the number of complete revolutions per minute.

Search Time

The seek time is the time the drive needs to move the read head to a specific position on the disc that is inserted in the drive. In other words, the seek time encompasses the period of time between the arrival of a write or read command and commencement of the actual write or read process.

Sector

A sector is the smallest addressable information unit on a CD-ROM. A sector is composed of 2,352 bytes, of which - depending on the type of CD used - different amounts are available as user data. A sector generally consists of a header, synchronization bits and user data. It may also have error recognition and correction data.

Streaming

Streaming refers to the continuous transmission of data that can already be played during the transmission procedure. This means that it is not necessary to wait until a media file has been transmitted completely before it can be played back. A TV channel can be received and displayed at the same time without it first having to be saved to the hard drive.

Subchannel data

Subchannel data on a disc contains additional information, such as CD Text or information on positions.

Write Speed

The write speed indicates the speed at which a drive can write data to the optical storage medium, e.g. 8x or 16x speed.
A Access/Seek Times. 18, 28 Access/Seek Times Test. 18, 28 Additional tests. 48, 50, 52, 53, 55, 56, 57, 58, 60 Advanced DAE Quality Test. 48, 50, 52, 55, 56 Angular velocity.. 26 Autorun.. 20 Autosave.. 19 B Benchmark tab. 10, 25, 30 Bit Settings.. 65, 66 Book type.. 65, 66 Burst rate test.. 29 C C1/C2 - PI/PO Test. 44 Capture.. 24 Changing Bit Settings.. 66 Colors.. 21 Conventions, manual.. 5 CPU usage.. 28 CPU usage test.. 28 Create data disc. 30, 33, 36 Create data disc test.. 30, 33 Create Disc tab.. 10, 33, 36 Create Image.. 53, 55 Creating a DAE Test Disc.. 48, 50 D DAE quality.. 48 Database... 61, 62 Disc Info Tab... 10 Disc Quality.. 21 Disc Quality tab.. 10, 39, 43 E Erasing a Disc.. 64 Error test.. 48, 53, 55, 56 L Language... 11 Launching the Program.. 6 Linear velocity.. 26 Load/Eject.. 29 Load/eject test.. 29 Loading Test Data.. 62 M Main Screen.. 7 Manual, conventions. 5 N Nero DiscSpeed - Bit Setting window. 66 Nero DiscSpeed - Bit Setting Window. 65 Nero DiscSpeed - Database window. 62 Nero DiscSpeed - Erase window.. 64 Nero DiscSpeed - Overburning Test window.. 58, 60 Nero DiscSpeed Options Window. 11 Nero DiscSpeed window - Advanced DAE Error Correction Test.. 53 Nero DiscSpeed window - Advanced DAE Quality Test.. 50, 52 Nero DiscSpeed Window - DAE Test Disc... 48, 50 Nero DiscSpeed window- Advanced DAE Error Correction Test.. 55, 56 O Options. 11, 13, 15, 18, 19, 20, 21, 24 Overburning test. 57, 58, 60 Q Quality Test.. 39 R Read speed.. 13, 26 Read test.. 44 Rotational speed.. 26, 33 Running a test series.. 32 Running the Advanced DAE Quality Test

Fig. 3: Nero DiscSpeed Options window: User Interface navigation entry
The following setting options are available: Language area Specifies the language to be used in the program interface. Specifies what information will be displayed in the Benchmark tab in the main screen. This setting will only be available if there is a DVD in the drive. Disc info (DVD) area The following options are available: Disc type Shows the disc type of the DVD in the chosen drive. Book Type Shows the book type of the DVD in the chosen drive.

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Specifies the priority for Nero DiscSpeed. Priority area Each process under Microsoft Windows is executed with a specific priority that is determined by the possibility to access the computer's resources (e.g. memory). Set the priority to High to prevent your tests being interfered with by other processes running concurrently on the computer. Specifies the color of the main screen (Benchmark tab in the foreground). In the Theme drop-down menu you can choose between predefined color combinations and manual (i.e. user-defined) combinations. The colors of the following areas can be changed with a manual combination: Background 1 Basic color in the background of the graph area. Background 2 Background color for the graph area (second color for shadowing). Check/uncheck the box to add shadows to/strip shadows from the graph area. Grid (primary) Coarse structure in the grid in the graph area. Colors area Grid (secondary) Fine structure in the grid in the graph area. Speed Line signifying speed in the graph (write or read speed depending on the test). RPM Line signifying the rotational speed of the disc in the graph. Buffer level Line signifying the buffer level. CPU usage Line signifying CPU usage. Show horizontal grid Check/uncheck the box to show/hide horizontal lines in the grid in the graph area. Show vertical grid Check/uncheck the box to show/hide vertical lines in the grid in the graph area. To manually change a color, click on the colored tile and select the color you want in the corresponding dialog box.

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Standard tests
The Standard Tests navigation entry offers setting options in the Selected tests, Speed, and Spin-up time areas.

Write mode area

Streaming check box
Direct overwrite check box
Burn image file check box
Include test data check box

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Access/seek times
The Access/Seek Times navigation entry offers setting options in the Measure und Number of operations areas specifically for the access/seek times test (see Access/seek times).
Fig. 6: Nero DiscSpeed Options window: Access/Seek Times navigation entry
The following setting options are available: Defines which of the two tests will be run. Measure area Number of operations spin box Seek times Access times Defines how often the chosen measurement value will be evaluated.

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Under the Save navigation entry you can specify a storage location and file name that are automatically selected if you have enabled the Autosave feature.
Fig. 7: Nero DiscSpeed Options window: Save navigation entry
The following setting options are available: Autosave check box Include status check box Show file dialog check box If this box is checked, Nero DiscSpeed will automatically save all test results either in CSV or in HTML format. If this box is checked, Nero DiscSpeed will not only save the graphical representation but also all additional information displayed in the text box. If this box is checked, an appropriate dialog box will open before the file is saved. Here you can choose a file name and specify where the file is to be saved. If this box is not checked then all files will be automatically saved in the specified folder. The file name is automatically created. Defines the folder in which the test data is saved. The selected folder is displayed. Creates file names according to user-defined parameters. You can compile the parameters in any order. Arrange all the parameters you want in the text box. The following parameters are available: %M: Drive name %V: Drive version Text box %D: Date %T: Time %I: MID (media code of the disc) If all parameters are cleared from the text box it means that a file name cannot be automatically generated.

button

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Autorun

You can make detailed settings for the autostart feature under the Autorun navigation entry.
Fig. 8: Nero DiscSpeed Options window: Autorun navigation entry
The following setting options are available: Start selected tests automatically check box Starts the series of tests selected under the Standard Tests navigation entry (see Standard tests) automatically as soon as a disc is inserted in the drive. If this box is not checked then the test series must be manually started. Defines how often the tests selected under the Standard Tests navigation entry (see Standard tests) will be run. Continuously run selected tests check box The following options are available if this box is checked: Delay between test runs Defines the length of the delay between two test runs. Number of test runs Defines how often the tests will be repeated. If the value 0 is selected in the Number of test runs spin box then the tests will be repeated until you manually stop them.

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You can stop a test in progress at any time by clicking on the Stop button. You can now infer the result of the test from the graphical representation and/or the relevant displays and save it. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.
Running a standard test series
The following requirement must be satisfied: The Benchmark tab is selected in the main screen. To start more than one test in succession, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu.
If instead of selecting specific standard tests you want to run all of them, skip the next step and click on Run Test > All in the menu bar. The test series is immediately started and run.
The Nero DiscSpeed Options window is opened.
3. Click on the Standard Tests navigation entry. 4. Check the boxes beside the tests that you want to run and uncheck all tests that you do not

want to start.

5. Make further settings as desired for the selected tests under the relevant navigation entries
(see Nero DiscSpeed - Options window) and click on the OK button.
6. Insert an appropriate disc in the drive. 7. Click on the Start button.
The test series is started and run. You can follow the individual steps in the test processes in the description box under the graphical representation. You can stop a test series in progress at any time by clicking on the Stop button. You can now infer the results of the test series from the graphical representation and/or the relevant displays and save them. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.

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Create Disc tab
Create data disc (advanced version)
The create data disc test is available as an advanced version on the Create Disc tab and as a classic version on the Benchmark tab. Both versions are essentially the same (see Create data disc (classic version) ). In addition to evaluating the write and rotational speeds as in the classic test, with the advanced test you can also measure the buffer level and the CPU usage of the drive. The advanced test is run on the Create Disc tab and this is also where the result is displayed.
Fig. 13: Create data disc (advanced version) Create Disc tab
The results are displayed in the graphical representation in the form of four curves for write speed, rotation, buffer level, and CPU usage. The horizontal scale shows the values for disc capacity (in MB for CDs and in GB for DVDs). The vertical scales show the write speed on the left and the rotational speed on the right (in RPM x 1000). A progress bar located between the graphical representation and the description box indicates the progress of the burn process. You will find general information on the disc in the drive in the Disc info area to the right of the graphical representation.

Capacity

You will find further information on the disc in the drive in the Extended Information area. The following description fields are available: Layers Write strategies Copyright protection Disc Status Shows the number of available layers on the disc. Checks the intended purpose of a disc. Some discs have a designated purpose, for example audio CDs. Regular CDs are identified as general. Shows whether the disc in the drive is copy-protected. Shows the status of the disc, i.e. whether the disc is still totally blank, already finalized or can accept more data.
In addition you will find information on binary data previously burned to the disc in the Raw Data area.

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Disc Quality tab

10.1 Quality test

The detailed quality test is available on the Disc Quality tab. This test is particularly useful for burned discs. The quality test can only be reliably run with a recorder; a reader on its own is not sufficient. The quality test is also referred to as a scan. Nero DiscSpeed offers a quick scan and a detailed quality test, i.e. it differentiates between the two versions. You can run the test with burned discs on the Disc Quality tab and this is also where the result is displayed.
Fig. 15: Quality test Disc Quality tab
The results are displayed in two graphical representations: the top one shows the results for C1 errors/PI errors (in each case for CDs and DVDs) while the bottom one shows the results for C2 errors/PI failures (in each case for CDs and DVDs). In the top table, the vertical scales on the left show the number of C1 errors/PI errors and the vertical scales on the right show the write/read speed. In the bottom table, the vertical scales on the left show the number of C2 errors/PI failures and the vertical scales on the right show the jitter value.

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If you want to omit a protected area from the bottom graphical representation, check the Use background to show error limits box in the options under the Disc Quality navigation entry (see Disc quality). The horizontal scale in both tables shows the values for disc capacity, in MB for CDs and in GB for DVDs. You can define preferences for the test in the Settings area to the right of the graphical representation. The necessary basic settings must also have been made in the options under the Disc Quality navigation entry before you run the test (see Disc quality). The following settings are available on the tab: Defines the speed at which the test is run. drop-down menu The entries in the drop-down menu vary depending on the recorder and the disc in the drive. Refreshes the entries in the drop-down menu of available speeds. button If there are a number of drives connected to your computer, we recommend that you refresh the data once you have chosen the drive for the test. Defines the start value from which the test should run. This value can be manually entered. Select the value 0000MB to start the test from the beginning of the disc. Defines the end value up to which the test should run. This value can be manually entered. End text box Nero DiscSpeed suggests a value for the disc in the drive. For a burned disc this value may deviate from the maximum capacity as the data may either not fill up or exceed the maximum capacity. If this box is checked, the quick scan will be run as per the settings you defined in the options under the Disc Quality navigation entry. If this box is not checked then the entire disc will be scanned. Show C1/PIE check box Show C2/PIF check box If this box is checked, the C1 errors/PI errors will be shown. If this box is not checked then this information will be hidden. If this box is checked, the C2 errors/PI failures will be shown. If this box is not checked then this information will be hidden. If this box is checked, the jitter will be shown. Show jitter check box If this box is not checked then this information will be hidden. Not all recorders can measure jitter values. Even if this box is checked, the jitter will not be shown if the recorder in question cannot measure the values.

Start text box

Quick scan check box

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Show read speed check box
If this box is checked, the read speed will be displayed in the top graphical representation. The curve is displayed in red by default. You can change this color according to your requirements in the options under the Disc Quality navigation entry. If this box is checked, the write speed will be displayed in the top graphical representation. The curve is displayed in white by default. You can change this color according to your requirements in the options under the Disc Quality navigation entry. If the Include test data box has been checked in the options under the Transfer Rate navigation entry, the write speed will have been recorded on the disc during burning and will be available for further tests on the disc. If this box was not checked during burning then the write speed cannot be displayed as the information will not have been saved on the disc. Opens the Disc Quality Test: Advanced Options dialog box.
Show write speed check box

Advanced button

In addition test results as well as data on the test in progress are shown in the Disc info area and in a number of other description fields to the right of the graphical representation. Information on the disc quality is displayed in real time in the areas C1 Errors, C2 Errors, and Jitter under the graphical representation while the test is running. The number of PO failures is also shown here. The Disc info area shows general information on the disc in the drive. The following description fields are available: Type ID Date Shows the disc type of the disc in the drive. Shows the media identification code (MID). Shows the date when the disc was created/burned. If an image file was burned to the disc then this description field will show the date when the image file was created. Shows the disc label of the disc in the drive. Label If you do not want to show the disc label, do not check the Show disc label box in the options under the Disc Quality navigation entry.

If the Include test data box has been checked in the options under the Transfer Rate navigation entry, an additional description field showing information on the recorder and firmware used to burn the disc in the drive will be shown above the graphical representations. Further information is available in the following description fields: A percentage is calculated based on the results of the test. Quality score A value of 100% would indicate an error-free disc with no C2 errors/PI failures. Shows the progress of the test, i.e. the percentage of the disc already scanned. Shows the current position of the optical pickup on the disc.

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Progress Position
Shows the scanning speed.
The PI Errors area shows information on PI errors found. The following description fields are available: Average Maximum Total Shows the average number of PI errors found. Shows the maximum number of PI errors. Shows the total number of PI errors found.
The PI Failures area shows information on PI failures found. The following description fields are available: Average Maximum Total Shows the average number of PI failures found. Shows the maximum number of PI failures. Shows the total number of PI failures found.
The Jitter area shows information on the jitter. The following description fields are available: Average Maximum Shows the average jitter value. Shows the maximum jitter value.
Not all recorders can measure jitter values. The description fields remain blank if the recorder in question cannot measure the values.

10.2 Starting the test

The following requirement must be satisfied: The Disc Quality tab is selected in the main screen. To start the quality test, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Insert a disc in the drive. 3. Make the settings you want in the Settings area to the right of the graphical representation.
If you want to run the detailed test, i.e. want to test the entire disc, make sure that the Quick scan box is not checked.
4. Click on the Start button.
If you want to run the detailed test, always start it using the Start button. The entries in the Run Test menu are grayed out as long as the Disc Quality tab is selected. If you click or can click on Run Test > Selected in the menu bar, the quick scan will automatically be run on the Benchmark tab and the results displayed there. The test is started and run. You can follow the test processes in the areas under the graphical representations.

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You can stop a test in progress at any time by clicking on the Stop button. You can now infer the results of the test from the graphical representations and/or the relevant displays and save them. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.

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ScanDisc tab

11.1 ScanDisc test

The ScanDisc test is available on the ScanDisc tab. You can run it on the ScanDisc tab and this is also where the result is displayed. It can be run in two versions: as a read test and as a C1/C2 PI/PO test. You can use the read test to test optical drives and/or burned discs. The test checks whether burning was successful and whether all areas can be read. If you want to test burned discs, we recommend that you set the test speed to maximum. You will then be testing the disc under worst-case conditions. The C1/C2 - PI/PO test lets you check the quality of the disc with respect to completeness of the sectors. It is not the same as the disc quality test, even though the quality test is also often referred to as a scan and is similar to the C1/C2 - PI/PO test (see Disc Quality tab). The results of the C1/C2 - PI/PO test are displayed differently in the graphical representation. It is the status of the sectors and not the number of errors that is shown in this case.

Fig. 16: ScanDisc tab

The test results of both versions are displayed both in a graphical representation and in greater detail in the description box under the graphical representation. The graphical representation shows all sectors on the disc in one chart, with each sector corresponding to a small square. Each square, i.e. each sector, is displayed in a different color depending on its status.

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The following colors, i.e. status indicators, are available: Green Yellow Red Readable sectors with no errors. Damaged sectors that can still be read using the recorder's internal error correction feature. Damaged sectors that cannot be corrected and are consequently unreadable.
The description box under the graphical representation shows the detailed test results. You can define preferences for the test in the Settings area to the right of the graphical representation. The following settings are available: Speed drop-down menu Read test option button C1/C2 PI/PO test option button Defines the speed at which the test is run. Enables the read test. Enables the C1/C2 PI/PO test.
In addition, test results as well as data on the test in progress are shown in the Disc info, Surface scan, and Position areas to the right of the graphical representation. The Disc info area shows general information on the disc in the drive. The following description fields are available: Type ID Date Shows the disc type of the disc in the drive. Show the media identification code (MID). Shows the date when the disc was created/burned. If an image file was burned to the disc then this description field will show the date when the image file was created. Shows the disc label of the disc in the drive. Label If you do not want to show the disc label, do not check the Show disc label box in the options under the Disc Quality navigation entry.

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Additional tests
The Extra menu in the menu bar offers additional tests specifically for analyzing audio CDs, namely the advanced DAE quality test and the overburning test.
Fig. 17: Additional tests
12.1 Advanced DAE quality test
The advanced DAE quality test differs from the standard DAE quality test. Using a special test disc, the advanced test identifies problems that your drive may have when reading an audio CD. You can run the test in two steps depending on whether you first want to create a test CD (see Creating a test CD) and then test it (see Running the test), or you already have a suitable test disc with which you can start the test directly. In addition, the error test lets you determine the capabilities of a drive to prevent errors when creating a copy (see Error test).

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12.1.1 Creating a test CD
The Create Test CD feature lets you burn a special test disc to use in the advanced DAE quality test. This disc is created in the Nero DiscSpeed DAE Test Disc window.
Fig. 18: Advanced DAE quality test: Nero DiscSpeed DAE Test Disc window
You can define preferences for the burn process in the top part of the window. Information on the write process in progress and on the disc in the drive is displayed in the Write position and Disc information areas as well as in the description box at the bottom of the window. The following settings are available: Write speed drop-down menu Test capacity text box Simulate check box RAW mode check box Defines the speed at which the disc is burned. We recommend that you choose a speed under 16x when burning an audio CD. Shows the disc capacity in MSF (minutes/seconds/frames). If this box is checked, Nero simulates the process to create all the test results instead of writing data to the blank disc. If this box is checked, the disc will be burned in RAW mode.

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The following information on the write process in progress is displayed in the Write position area: Position Relative Always indicates the current position of the optical pickup on the disc. Always indicates the percentage of the disc already recorded. Indicates the burn progress. The following information on the disc in the drive is displayed in the Disc information area and in the description box: Shows the disc capacity both in MSF (minutes/seconds/frames) and in MB. Capacity Maximum specifies the maximum volume of data that can be written to the disc with the help of additional capacity achieved through overburning. Extra specifies the difference between normal and maximum capacity. Manufacturer Dye type Disc type Shows the manufacturer's name. Shows the dye type used. Shows the disc type of the disc in the drive.
To create a test disc, proceed as follows:

3. Click on Extra > Advanced DAE Quality Test > Run Test in the menu bar.
The Nero DiscSpeed Advanced DAE Quality Test window is opened.
4. Make the settings you want in the Advanced features area. 5. Click on the Start button.
The test is started and run.

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You can stop a test in progress at any time by clicking on the Stop button. You can now infer the results of the test from the Test results and On-the-fly copying areas as well as the detailed information in the description box and save them. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.

12.1.3 Error test

The error test determines the capability of a drive to prevent errors when creating a copy. This is done by reading out the data on an A-BEX disc and comparing it with an image file already saved on the hard drive. To run this test you need a standard test disc of the type A-BEX (TCD-714R, TCD-721R, or TCD-726). All A-BEX discs contain the same data (audio data). The reading surface of the various A-BEX discs contains a series of intentional defects of varying severity. Instead of using an A-BEX disc, you can also run a restricted version of the test using a DAE test disc that you have previously created (see Creating a test CD). It is not necessary to create an image file in this case as Nero DiscSpeed is familiar with the contents of the comparison disc. For more information on running this version of the test, see Running the test with a DAE test disc.
Fig. 20: Error test: Nero DiscSpeed Advanced DAE Error Correction Test window

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The error test is run in two steps. First the Create Image feature creates an image file of your test disc (see Creating an image). Next the Run Test feature reads out the data and compares it with the image file (see Running the test with a DAE test disc). 12.1.3.1

Creating an image

The Create Image feature lets you extract the data from an A-BEX disc to create an errorfree image file on the hard drive - provided the drive can create the file from the data provided. To create an image file of the test disc, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Insert an A-BEX disc in the drive. 3. Click on Extra > Advanced DAE Quality Test > Error Test > Create Image in the menu
bar. The Nero DiscSpeed Advanced DAE Create Image window is opened.
Fig. 21: Error test Nero DiscSpeed Advanced DAE Create Image window

Shows the number of C2 errors missed. Shows the number of compare errors found. Compare errors occur when the audio data read out does not match the compare data from the image file. Shows the number of synchronization errors found. Synchronization errors occur when data is correct but has been moved by one or more sectors.

Sync errors

The following requirement must be satisfied: The image file of the test disc must be saved on the hard drive (see Creating an image). To compare the test disc with the associated image file on the hard drive, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Insert an A-BEX disc whose image file is already on the hard drive in the drive. 3. Click on Extra > Advanced DAE Quality Test > Error Test > Run Test in the menu bar.
The Nero DiscSpeed Advanced DAE Error Correction Test window is opened.
4. Some drives show C2 errors in reverse order. If you want to correct this, check the Reverse

C2 box.

5. Click on the Start button.
The Start button remains grayed out until an appropriate disc has been inserted. The test is started and run. The graphical representations and the areas underneath indicate the progress. You can stop a test in progress at any time by clicking on the Stop button. You can now infer the results of the test from the graphical representations and/or the relevant displays and save them. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.

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12.1.3.3
Running the test with a DAE test disc
Instead of using an A-BEX disc, you can also run a restricted version of the test using a DAE test disc that you have previously created (see Running the test with a DAE test disc). It is not necessary to create an image file in this case as Nero Disc Speed is familiar with the contents of the comparison disc. To run the test, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Insert a DAE disc in the drive. 3. Click on Extra > Advanced DAE Quality Test > Run Test in the menu bar.
The Start button remains grayed out until an appropriate disc has been inserted. The test is started and run. You can stop a test in progress at any time by clicking on the Stop button. You can now infer the results of the test from the graphical representations and/or the relevant displays and save them. A snapshot saves only the graphical representation, the results in all further displays are lost. We recommend that you save the test result by means of the settings in the options under the Save navigation entry.

1. Click on File > Save Results in the menu bar and choose your preferred storage format.
The Save As window is opened.
2. Enter a file name in the File name text box if necessary. 3. Click on the Save button.
You have saved the test file.

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Loading test data
The Load Single File menu item lets you load saved test data, while the Database menu item lets you load a number files at once for comparing test results and/or the efficiency of drives. In order to make effective use of the database, i.e. to get comparable results, you should use the same disc for the various tests in all drives. Only test data saved as binary files with the extension *.dat can be loaded. Test results saved in any other format cannot be opened via the menu bar. To load test results, proceed as follows:
1. If you want to open a single saved test file:
1. Click on File > Load Results > Load Single File in the menu bar. The Open window is opened. 2. Select the file you want and click on the Open button. The chosen file is opened in the main screen on the Benchmark tab and the test data is displayed.
2. If you want to load a number of files at once for comparison:
1. Click on File > Load Results > Database in the menu bar. The Nero DiscSpeed Database window is opened. 2. Click on the Add Results button. The Insert Files dialog box is opened. 3. Select the files you want and click on the Open button. The test files are imported and displayed in the Nero DiscSpeed Database window. 4. Check the boxes beside the files you want to compare. 5. In the lower part of the window, select the option button for the test for which you want to compare data. The results of the chosen test are displayed for the chosen test files.

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Fig. 24: Nero DiscSpeed Database window
6. Click on the Graph button. The Nero DiscSpeed Test Results window is opened and shows a graphical representation of the chosen test results. The results for each test file are displayed in a different color (the Legend area shows which color corresponds to which test).
Fig. 25: Nero DiscSpeed Test Results
You have loaded your chosen test results.

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Erasing a disc
The Erase Disc feature lets you erase data from rewritable media. This test is run in the Nero DiscSpeed Erase window.

Fig. 26: Erasing a disc: Nero DiscSpeed Erase window
A progress bar indicates the status of the test while it is running. You can define the erase method in advance. The following erase methods are available: Erases the table of contents on a disc. Quick If the table of contents is erased, the drive detects the disc as blank. All information about data on the disc is lost. This erase operation usually takes less than a minute. Erases all data from a disc. Full As a rule of thumb, the time required for a full erase operation is the same as the time required to write to the medium in the first place.
To erase a rewritable disc, proceed as follows:
1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Insert the disc you want to erase in the drive. 3. Click on Extra > Erase Disc in the menu bar.
The Nero DiscSpeed Erase window is opened.
4. Select the option button for the erase method you want. 5. Click on the Erase button.
The Erase button remains grayed out until an appropriate disc is inserted. The erase operation is started. You can exit a test in progress at any time by clicking on the Exit button. You can monitor the progress of the erase operation using the progress bar.

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Changing the bit setting
The Bit Setting feature lets you change the bit settings/book type of a selected DVD recorder (provided the recorder in question supports this feature). The settings are made in the Nero DiscSpeed Bit Setting window.
Fig. 27: Bit setting: Nero DiscSpeed Bit Setting window
The book type information is what an optical drive uses to detect the type of media inserted. By changing the book type you can dupe the player into believing that the DVD inserted is a pressed and not a burned disc. Not all DVD recorders can modify the book type. What's more, the book type can only be changed for "plus media (e.g. +R). With other media types, the book type is already on the disc before it is ever burned. The Drive settings area shows the defined book type as well as all the changes that can be made. The following information is displayed: Disc type Book Type Shows the disc type. Shows the book type selected for the disc.
The following settings are available: New setting drop-down menu Set button Shows which new settings for the book type can be selected. Media types not supported by the chosen drive will be grayed out. Accepts the changes made.

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Set as default check box
If this box is checked, the chosen changes will be retained as the default for the drive even after the computer is restarted. This box will be grayed out if the drive does not support this feature.
The Disc settings area shows the disc type currently selected and the selected book type. To edit the bit settings for a DVD recorder, proceed as follows:

1. If there are a number of drives available, select the one you want in the drop-down menu. 2. Click on Extra > Bit Settings in the menu bar.
The Nero DiscSpeed Bit Setting window is opened. The Drive settings area shows the disc types as well as the book types selected for each.
3. Change a book type in the relevant New setting drop-down menu and click on the Set
4. If you want to retain the new book type setting as the default for the drive, check the Set as

default box.

This box will be grayed out if the drive does not support this feature.
5. Click on the Refresh button.
The display in the window will be refreshed. The Drive settings area shows the disc types as well as the modified book types as a selection under Book Type.
6. Click on the Close button.
You have changed the bit settings for a DVD recorder.

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Error Test...48
Running... 48, 50, 52 Starting... 51, 52
About Nero DiscSpeed.. 5 About the Manual.. 5 Access/Seek Times... 15, 24 Additional Tests... 43 Advanced DAE Quality Test.. 43
Running...46 Starting...47

Extra...43

General Information..5
Launching Nero DiscSpeed..7 Launching the Program..7 Load/Eject..25
Autorun... 17 Autosave... 16 Autostart... 17
Bit Setting.. 60 Bit Settings

Editing...61

Main Screen..8, 20
Options...10, 28 Overburning Test..43, 52
Running... 54 Simulating... 54

Book Type... 60

Changing....61

Burst Rate... 25

C1/C2 P1/PO Test... 40 Contact... 64 Conventions... 5 Copyright... ii CPU Usage... 25 Create Data Disc.. 26, 29, 52 Creating a DAE Test CD.. 44, 47, 48 Creating an Image.. 30, 49, 51

Quality Test...35

Running... 38 Starting... 38

Read Test..40

Save...9, 16 Saving...8, 20, 56 Saving Results..56 ScanDisc Test...40
Running... 42 Starting... 42
DAE Quality... 24 Defining the Colors... 11 Defining the Language.. 10 Defining the Priority.. 11 Disc Quality... 18
Simulating the Burn Process..30 Snapshot...20

Erasing a Disc.. 59