Manual Nero DiscSpeed
Copyright and Trademark Information This document, like the software described therein, is provided as a license and may only be used or reproduced in accordance with the licensing agreement. The contents of this document, as well as the associated software, is subject to change without prior notice. Nero AG rejects any responsibility for the correctness of the contents of this document and rejects any claims that transcend the clauses of the guarantee agreement.
Table of contents Table of contents 1 1.1 1.2 Start Successfully About the Manual About Nero DiscSpeed 5 5 5 2 Starting The Program 6 3 Main Screen 7 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 Benchmark Tab - Standard Tests Running an Individual Standard Test Running a Standard Test Series Transfer rate DAE Quality Access/Seek Times CPU Usage Burst Rate Spin Up/Down Load/Eject Create Data Disc (Classic Version) 11 11 13 14 16 16 17 17 17 17 18 5 5.1 5.
Table of contents 9.5.3 9.5.4 Running the Test with a DAE Test Disc Advanced DAE Error Correction Test Window 41 41 10 10.1 10.2 Additional Test - Overburning Running the Overburning Test Nero DiscSpeed - Overburning Test window 44 44 45 11 11.1 11.2 Save and Load Test Data Saving Test Data Loading Test Data 47 47 47 12 Erasing a Disc 49 13 13.1 13.2 Bit Setting Changing the Bit Setting Nero DiscSpeed - Bit Setting Window 50 50 50 14 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.
Start Successfully 1 Start Successfully 1.1 About the Manual This manual is intended for all users who want to learn how to use Nero DiscSpeed. It is process-based and explains how to achieve a specific objective on a step-by-step basis. To make best use of this documentation, please note the following conventions: Indicates warnings, preconditions or instructions that have to be precisely followed. Indicates additional information or advice. 1.
Starting The Program 2 Starting The Program To start Nero DiscSpeed via Nero StartSmart, proceed as follows: 1. Click the Nero StartSmart icon. The Nero StartSmart window is opened. 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. The Nero DiscSpeed window is opened. You have launched Nero DiscSpeed via Nero StartSmart.
Main Screen 3 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 tabs within the main screen. These tabs are used to carry out the different tests and to display information regarding them.
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.
Main Screen Spin Up/Down Starts the spin up/down test. Load/Eject Starts the load/eject test. Create Data Disc Starts the create data disc test. The following entries are available in the Extra menu: Advanced DAE Quality Test Contains the following three sub-entries: Create Test CD, Run Test, and Error Test. Create Test CD: Opens the Nero DiscSpeed - DAE Test Disc window, where you can burn a special test disc in order to run the advanced DAE quality test.
Main Screen Start Starts the test. The test that is started depends on the selected tab. Stop Stops the test in progress. Exit Closes Nero DiscSpeed. The following tabs are available: Benchmark Displays the Benchmark tab. Here you can run the standard tests offered by the program. This is also where the results are displayed. Create Disc Displays the Create Disc tab. Here you can run an advanced test for writing to disc.
Benchmark Tab - Standard Tests 4 Benchmark Tab - Standard Tests All standard tests are run in the main screen on the Benchmark tab. You can run tests individually or combined into a test series.
Benchmark Tab - Standard Tests 4.1 Running an Individual Standard Test The following requirement must be fulfilled: ► The Benchmark tab is selected in the main screen. To start an individual test, proceed as follows: 1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert an appropriate disc into the optical drive. 3. Click the Run Test menu. The Run Test menu is opened. Standard Test - Selection 4. Select the desired test.
Benchmark Tab - Standard Tests The test is run. You can follow the individual steps of the test process in the display area under the graph. You can cancel a running test at any time by clicking the Stop button. You can now see the result of the test in the graph and the relevant displays and save it. See also Saving Test Data → 47 4.2 Running a Standard Test Series The following requirement must be fulfilled: ► The Benchmark tab is selected in the main screen.
Benchmark Tab - Standard Tests 3. Insert an appropriate disc into the optical drive. 4. Click the Start button. The Spin Up Drive window is displayed while the test is being prepared. The window is then closed automatically. The test is run. You can follow the individual steps of the test process in the display area under the graph. You can cancel a test in progress at any time by clicking the Stop button. You can now see the result of the test in the graph and the relevant displays and save it.
Benchmark Tab - Standard Tests 4.3 Transfer rate 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. This test is suitable for testing an optical drive and for verifying the readability of burned discs (CDs or DVDs). The results are displayed in the form of two curves in the graph.
Benchmark Tab - Standard Tests rotational speed of the disc decreases as the laser moves away from the center of the disc. As a result, both the read speed and the data density and rate remain constant in all areas of the disc. ZCLV (zone CLV): If a disc is divided into several CLV zones, each one of them can be read and above all burned as separate logical areas by using CLV. 16x speed is a characteristic value for the innermost zone of a CD, after which the speed can be increased in stages.
Benchmark Tab - Standard Tests The following partial measurements are performed for seek or access times: Random Moves the read head to a random position on the disc. 1/3 Moves the read head from the start of the disc over the first third. Full Moves the read head from the start of the disc to its logical end, i.e. to the outermost position where data is saved on the disc. See also Access/Seek Times Navigation Entry → 58 4.
Benchmark Tab - Standard Tests 4.9 Load/Eject The Load/eject test measures the time that an optical drive needs to load, detect, and eject a disc. The time an optical drive needs to load and/or eject a disc should always be roughly the same, regardless of the disc type. The duration depends on how quickly the optical drive closes the tray and opens it again. The time an optical drive needs to detect a disc that is inserted in the drive depends on the disc type.
Create Data Disc 5 Create Data Disc 5.1 Running the Create Data Disc Test The following requirement must be fulfilled: ► The Create Disc tab is selected in the main screen. To start the Create data disc test, proceed as follows: 1. If there are several optical drives available, select the one you want in the drop-down menu. 2. Configure the settings you want in the Settings area to the right of the graph. 3. Insert a blank disc in the optical drive if you are not running a simulation. 4.
Create Data Disc The horizontal scale shows the values for disc capacity (in MB for CD's and in GB for DVD's). The vertical scales show the write speed on the left and the rotational speed on the right (in RPM x 1000). A progress bar between the diagram and the display area shows the burning progress. Create Disc tab You will find general information on the disc that is inserted in the drive in the Disc info area, to the right of the graph.
Create Data Disc As a basic principle, all settings defined in the options apply to the standard test on the Benchmark tab. All settings affecting the advanced test are configured directly on the Create Disc tab. The colors in the graph are an exception to this. If you want to change these colors, you can do so in the options under the User Interface navigation entry. You can define necessary preferences for the test in the Settings area to the right of the graph.
Create Data Disc 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.
Disc Info 6 Disc Info The Disc Info tab provides detailed information on the disc inserted in the drive. The information is displayed on the tab in an area divided into: Basic Information, Extended Information, and Raw Data. Disc Info Tab You can customize the display to meet your requirements by using the check boxes under the display area. The following check boxes are available: Basic information If this check box is enabled, the general information in the Basic Information area is displayed.
Disc Info Additionally, the following buttons are available under the display area: Copy Text Copy HTML Copies all of the information to the clipboard in text format. Copies all of the information to the clipboard in HTML format. You will find general information on the disc in the drive in the Basic Information area. The following display panels are available: Disc type Shows the disc type of the disc in the drive. Book type Shows the book type of the disc in the drive.
Disc Quality 7 Disc Quality 7.1 Running the Disc Quality Test The following requirement must be fulfilled: ► The Disc Quality tab is selected in the main screen. To start the Disc Quality 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. If you want to run the detailed test, i.e. test the entire disc, make sure that the Quick scan check box is disabled. 3.
Disc Quality 7.2 Disc Quality Tab The Disc Quality test is often referred to as Scan, and can be run on the Disc Quality tab. You can choose between a quick scan and a complete scan. 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. This test is particularly useful for burned discs. It can only be run reliably with a recorder; a simple reader is not sufficient.
Disc Quality Disc Quality tab You can define preferences for the test in the Settings area to the right of the graph. In addition, the necessary basic settings in the options under the Disc Quality navigation entry must be met. The following setting options are available on the tab: Menu Speed Defines the speed at which the test is run. The available entries in the drop-down menu vary depending on the disc in the drive. Button Refreshes the entries in the drop-down menu of available speeds.
Disc Quality Check box Quick Scan Check box Show C1/PIE Check box Show C2/PIF Check box Show Jitter 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, the entire disc will be scanned. If this box is checked, the C1 errors/PI errors will be shown. If this box is not checked, this information will be hidden. If this box is checked, the C2 errors/PI failures will be shown.
Disc Quality Label 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. There is more information available in the following display panels: Quality score A percentage is calculated based on the results of the test. A quality index of 100% is perfect, i.e. there were no errors. Progress Shows the progress of the test, i.e. the percentage of the disc already scanned.
Disc Quality The number of PO failures is shown in the PO Failures display panel. These are the gravest errors that can be found on a DVD. PO failures are normally an indication of there being unreadable data on the disc.
ScanDisc 8 ScanDisc 8.1 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.
ScanDisc 8.2 ScanDisc Tab The Scan Disc test is available on the Scan Disc tab, where the result is also 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.
ScanDisc You can define preferences for the test in the Settings area to the right of the graph. The following setting options are available: Menu Speed Option button Defines the speed at which the test is run. The available entries in the drop-down menu vary depending on the disc in the drive. Enables the Read test. Read test Option button Enables the C1/C2 – PI/PO test. C1/C2 - PI/PO Test The graph shows all sectors on the disc in one chart, with each sector being plotted with a small square.
ScanDisc The following display panels are available in the Position area while the test is running: Progress Shows the progress of the test, i.e. the percentage of the disc already scanned. Position Continuously indicates the current position of the read head on the disc. Speed Shows the scanning speed. The following information is available in the columns in the display panel: File Lists the names of the files on the disc in the drive. Position Shows the respective position of the file on the disc.
Additional Test - Advanced DAE Quality 9 Additional Test - Advanced DAE Quality 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.
Additional Test - Advanced DAE Quality Nero DiscSpeed Window - DAE Test Disc The following setting options are available: Menu Write speed Input field 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). Test capacity Check box Simulate Check box If this check box is selected, Nero DiscSpeed simulates the burn process rather than writing data to the recordable disc.
Additional Test - Advanced DAE Quality Relative 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.
Additional Test - Advanced DAE Quality 9.4 Nero DiscSpeed window - Advanced DAE Quality Test In the Nero DiscSpeed - Advanced DAE Quality Test window, you can run the advanced DAE quality test, and the result is also shown there. The results are displayed in the Test results and On-the-fly copying areas, as well as in detail in the display area. A progress bar at the bottom of the window indicates the status of the test while it is running.
Additional Test - Advanced DAE Quality You can define preferences for the optical drive test in the Advanced features area. Optical drives start from different positions when reading audio sectors. There is also no standardized start position for the write process of recorders - there is usually a gap of a few hundred samples. The following check boxes are available: Read Leadin If this check box is enabled, the capability of the optical drive of reading the leadin is tested.
Additional Test - Advanced DAE Quality Instead of using an A-BEX disc, you can also run a limited version of the test by using a DAE test disc that you have previously created. It is not necessary to create an image file in this case, since Nero DiscSpeed is familiar with the contents of the comparison disc. See also Creating a Test Disc → 35 Create Image → 40 9.5.
Additional Test - Advanced DAE Quality 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. 5. Click the Start button. 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. You can now see the results of the test in the graphs and the relevant displays and save them.
Additional Test - Advanced DAE Quality 9.5.4 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.
Additional Test - Advanced DAE Quality Quality score A percentage is calculated based on the results of the test. A quality index of 100% is perfect, i.e. there were no errors. C2 errors Shows the number of C2 errors found. C2 missed Shows the number of C2 errors missed. Compare errors Sync Errors 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.
Additional Test - Overburning 10 Additional Test - Overburning 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.
Additional Test - Overburning 4. If you want to simulate the burn process in RAW mode, enable the RAW mode check box. 5. Choose the volume of data that you want to write to the disc or let Nero DiscSpeed determine the official capacity. 6. Click the Start button. The simulation is started. You can follow the progress of the burn process in the Write position and Disc information areas, as well as in the display area underneath. You can cancel a running test at any time by clicking the Stop button.
Additional Test - Overburning You can define preferences for the test in the top section of the window. The following setting options are available: Menu Write speed Defines the speed at which burning of the disc is simulated. We recommend that you choose a speed of 16x or less when burning an audio CD. Input field Test capacity Shows the disc capacity in MSF (minutes/seconds/frames).
Save and Load Test Data 11 Save and Load Test Data 11.1 Saving Test Data The Save Results menu item lets you save the full set of results from a test on the hard drive. Nero DiscSpeed offers different storage formats: Only test data saved as binary files with the *.dat extension can be loaded again. Use this format if you want to open the test data in Nero DiscSpeed and/or open and compare the test data in the Nero DiscSpeed database. An *.
Save and Load Test Data To load test results, proceed as follows: 1. If you want to open a single saved test file: 1. Click File > Load Results > Load Single File. The Open window appears. 2. Select the file you want and click 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 several files at once for comparison: 1. Click File > Load Results > Database in the menu bar. The Nero DiscSpeed - Database window opens.
Erasing a Disc 12 Erasing a Disc The Erase Disc feature lets you erase data from rewritable discs. This operation is run in the Nero DiscSpeed - Erase window. As a general rule, there are two erase methods available: Quick erasing does not remove the data physically from the disc, but instead only makes it inaccessible by erasing the references to existing content. The data can be restored! Full erasing removes the data from the disc by overwriting it with zeroes.
Bit Setting 13 Bit Setting The Bitsetting feature lets you change the bit settings or Book type of a selected DVD recorder in the Nero DiscSpeed - Bit Setting window (provided the recorder in question supports this feature). The book type information is what an optical drive uses to detect the inserted disc type. By changing the book type, you can fool the player into believing that the inserted DVD is a pressed disc and not a burned disc. Not all DVD recorders can modify the book type.
Bit Setting Nero DiscSpeed - Bit Setting window 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 Shows the disc type of the disc in the drive. Book type Shows the book type of the disc in the drive. The following setting options are available: Menu Shows which new settings can be selected for the book type. New setting Button Media types not supported by the chosen optical drive are grayed out.
Nero DiscSpeed Options Window 14 Nero DiscSpeed Options Window The Nero DiscSpeed - Options window provides various options for customizing the appearance of the Nero DiscSpeed interface and for configuring settings according to your requirements. The window can be opened using the button. It comprises a navigation tree and various setting options. Different input areas will be displayed depending on the entry selected in the navigation tree. 14.
Nero DiscSpeed Options Window In the Disc info (DVD) area, you can select which information is displayed on the Benchmark tab on the main screen. This setting will only be available if there is a DVD in the optical drive. The following setting options are available: Option button Disc type Option button Book Type Shows the Disc type of the DVD. Shows the book type of the DVD. The following setting options are available in the Priority area: Menu Priority Selects the priority of Nero DiscSpeed.
Nero DiscSpeed Options Window Button RPM Button Buffer level Button CPU usage Changes the color for the graph curve that represents the rotational speed of the disc. Changes the color for the Buffer level curve. Changes the color for the CPU usage curve. Check box Shows the horizontal grid lines in the graph area or hides them. This Show horizontal box is checked by default. grid Check box Show vertical grid Shows the vertical grid lines in the graph area or hides them. This box is checked by default.
Nero DiscSpeed Options Window 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.
Nero DiscSpeed Options Window Checks the data that was written on the disc during the Create data disc test. Check box Verify data In the Speed area, you can define the read speed for the Transfer rate test and the write speed for the Create data disc test. Maximum speed is enabled by default; this speed is also recommended for testing the optical drive and/or the discs under worst-case conditions.
Nero DiscSpeed Options Window Nero DiscSpeed - Options - Transfer Rate navigation entry You can define the settings for the graph in the Graph area. The following setting options are available: Slider Test length Defines the accuracy of the transfer rate test. The higher the accuracy, the more detailed the graph is. However, higher accuracy results in a longer test duration. Check box Show RPM Shows the rotational speed in the graph.
Nero DiscSpeed Options Window Check box Read test Shows the read test curve in either high or low resolution. Check box Write test Shows the write test curve in either high or low resolution. The following setting options are available in the Write options area: Area Write mode Selects the SAO (Session-At-Once) or TAO (Track-At-Once) write mode for discs. You can also select the Overburn CD and Overburn DVD check boxes in Session-At Once mode.
Nero DiscSpeed Options Window 14.4 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 - AccessSeek Times navigation entry The following setting options are available: Area Measure Input field Number of operations Defines which of the two tests will be run - Access times or Seek times. Defines how many times the selected test is run.
Nero DiscSpeed Options Window 14.5 Save Navigation Entry 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. Nero DiscSpeed - Options - Save navigation entry The following setting options are available: Check box Autosave Check box Include status Check box Show file dialog If this check box is enabled, Nero DiscSpeed will automatically save all test results, either in CSV or in HTML format.
Nero DiscSpeed Options Window Input field Creates file names based on the following user-defined parameters: drive name, drive version, date, time, and MID (Media Identification Code). You can compile the parameters in any order. Arrange all the parameters you want in the input field. If all parameters are cleared from the input field, the file name cannot be automatically generated. Only works if the Show file dialog check box is enabled. See also Saving Test Data → 47 14.
Nero DiscSpeed Options Window Check at startup if AutoRun is enabled Starts Nero DiscSpeed displaying a message window when AutoRun is disabled. You can enable AutoRun here. Continuously run selected Defines how many times the tests selected under the Stantests dard 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.
Nero DiscSpeed Options Window The following check boxes are available in the General area: Detect speed settings Show error limits 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 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 Theme Button Selects the desired theme. In addition to predefined themes, you can also set colors with the costum 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.
Nero DiscSpeed Options Window 14.8 Capture Navigation Entry The Capture navigation entry offers setting options for saving test results with the help of the snapshot feature. Nero DiscSpeed - Options - Capture navigation entry The following setting options are available: Check box Show file dialog 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.
Nero DiscSpeed Options Window You can compile the parameters in any order. Arrange all the parameters you want in the input field. If all parameters are cleared from the input field, the file name cannot be automatically generated. Only works if the Show file dialog check box is enabled.
Technical Information 15 Technical Information 15.1 System Requirements Nero DiscSpeed is part of the Nero product you have installed. Its system requirements are the same. Detailed system requirements of this and all other Nero products can be found in the Support section on our Web site www.nero.com.
Glossary 16 Glossary A-BEX-Disc An A-BEX disc is a test DVD that is used to test the error correction of an optical drive. For that purpose, the test DVD already comes delivered with defects such as scratches or fingerprints. Access Time The access time is the time a drive needs to move the read head to a specific position on the disc that is inserted in the drive and to additionally read an area of the disc.
Glossary 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. CPU usage The central processing unit processes a computer's processes.
Glossary Lead-in The leadin is the starting area (innermost area) of user data on a data carrier. This is where the table of contents and additional information concerning the disc is stored. Lead-out The leadout is the ending area of user data on a data carrier that is used to close a session. If the disc has not been completed yet, the reference for the next session is stored here. Multisession Disc A multisession disc can contain several sessions that are not fixed.
Glossary RPM 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.
Index 17 Index Access/Seek Times ............................. 16 Access/Seek Times Test ..................... 16 Additional tests 35, 37, 38, 39, 40, 41, 42, 44, 45 Advanced DAE Quality Test ... 35, 37, 38, 40, 40, 41 Angular velocity .................................... 15 Autorun ................................................. 61 Autosave .............................................. 60 Benchmark tab ......................... 10, 11, 18 Bit Settings ...........................................
Index Running the ScanDisc Test ................. 31 Running the test ................................... 12 Save ..................................... 9, 47, 60, 65 Saving Test Data.............................. 9, 47 ScanDisc .............................................. 32 ScanDisc tab ............................ 10, 31, 32 ScanDisc test ....................................... 32 Snapshot feature .................................. 65 Spin down ............................................ 17 Spin up ...
Contact 18 Contact Nero DiscSpeed is a Nero AG product. Nero AG Im Stoeckmaedle 13 Internet: www.nero.com 76307 Karlsbad Help: http://support.nero.com Germany Fax: +49 724 892 8499 330 N Brand Blvd Suite 800 Internet: www.nero.com Glendale, CA 91203-2335 Help: http://support.nero.com USA Fax: (818) 956 7094 E-mail: US-CustomerSupport@nero.com Rover Center-kita 8F-B, 1-2-2 Nakagawa-chuou Tsuzuki-ku Internet: www.nero.com Yokohama, Kanagawa Help: http://support.nero.com Nero Inc.
