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.
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.
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.
Capture to clipboard
Copies a snapshot of Nero DiscSpeed to the clipboard. The results in all further displays are lost.
You must save the snapshot before removing the disc you are testing from the optical drive. Otherwise the image will be deleted from the clipboard.
Capture to file
The Save as dialog appears. Opens the Save As window, where you can save the snapshot on your hard drive.
Options
Opens the Nero DiscSpeed – Options window, where you can define settings for the user interface, for the save function, and for various tests.
Exit
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.
All
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.
Transfer Rate
Starts the transfer rate test.
DAE Quality
Starts the DAE quality test.
Access/Seek Times
Starts the access/seek times test.
CPU Usage
Starts the CPU usage test.
Burst Rate
Starts the burst rate test.
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.
Run Test: Opens the Advanced DAE Quality Test window, where you can run the advanced DAE quality test with the help of a previously created test disc.
Error Test: Contains the Create Image and Run Test sub-entries.
Create Image: Opens the Nero DiscSpeed – Advanced DAE – Create Image window, where you can create an image file of the test disc. You need a test disc type A-BEX (TCD-714R, TCD-721R, or TCD-726)
Run Test: Opens the Nero DiscSpeed – Advanced DAE Error Correction Test window, where you can read the data from an A-BEX disc and compare it with the data of the created image file.
Overburning test
Opens the Nero DiscSpeed – Overburning Test window, where you can simulate the overburning test.
Erasing a Disc
Opens the Nero DiscSpeed – Erase window, where you can erase data from rewritable discs.
Bit Setting
Opens the Nero DiscSpeed – Bit setting window, where you can change the bit settings for a DVD recorder.
The following entries are available in the Help menu:
Help
Opens the Help Information window, where you can download the manual for Nero DiscSpeed from the Nero website.
About
Opens the About Nero DiscSpeed window, where you can find the exact version number of Nero DiscSpeed.
The following buttons are available:  
Opens the Nero DiscSpeed – Options window, where you can define settings for the user interface, for the save function, and for various tests.
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.
Disc Info
Displays the Disc Info tab, where you can find detailed information on the disc currently in the optical drive.
Disc Quality
Displays the Disc Quality tab. Here you can run a scan to test the quality of burned discs.
Scan Disc
Displays the ScanDisc tab. Here you can run a further quality test.

 

 
 
Whether the Disc Quality tab is available depends on the recorder that is installed.
 
 
 
See also
Transfer rate
DAE Quality
Access/Seek Times
CPU Usage
Burst Rate
Spin Up/Down
Load/Eject
Create Data Disc (Classic Version)
Additional Test – Advanced DAE Quality
Additional Test – Overburning
Erasing a Disc
Bit Setting
Benchmark Tab – Standard Tests
Disc Info
Nero DiscSpeed Options Window
Saving Test Data
Loading Test Data
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.


Main Screen