User manual NERO DISCSPEED

[. . . ] 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. This document and all of its contents are protected by copyright and are the property of Nero AG. [. . . ] 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. Shows the disc type of the disc in the drive. 9. 3 Running the Advanced DAE Quality Test The following requirement must be fulfilled: You have already created a test disc. If there are several optical drives available, select the one you want in the drop-down menu. 2. Insert the special test disc that you previously created into the optical drive. Click Extra > Advanced DAE Quality Test > Run Test on the menu bar. The Nero DiscSpeed - Advanced DAE Quality Test window opens. 4. 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 Test results and On-the-fly copying areas, as well as their detailed information in the display area, and save them. See also Saving Test Data 47 Creating a Test Disc 35 Nero DiscSpeed 37 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. In the On-the-fly copying area, the test determines whether an audio CD can be copied without causing errors at various speeds between 1x and 16x, i. e. indicates if the optical drive is suitable for use on-the-fly in combination with a recorder for backing up audio discs. The results of two tests are displayed in the Test results area: the Sequential read test and the Random read test. The sequential read test simulates the digital extraction of audio files (DAE) under ideal conditions and then runs a harmonic read test. A search for data errors returns audio samples that were not read correctly, based on a comparison of the read bytes with the known data from the test disc. Minor data errors can be corrected using the drive's error correction feature. Avoid data errors by using high-quality discs and/or reducing the drive speed. Synchronization errors occur when, instead of reading the required audio sectors, an optical drive reads the adjacent sectors. Nero DiscSpeed uses special data on the test disc to check if the correct sectors are being read. These errors can be audible. Nero DiscSpeed window - Advanced DAE Quality Test Nero DiscSpeed 38 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. [. . . ] The linear velocity increases as you move away from the center towards the outer edge. Angular velocity (also called rotational speed) describes the change in the rotation angle over time independently of the radius of the disc, i. e. the velocity at which an object loops a sector. Nero DiscSpeed 70 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. [. . . ]