The Error test determines the capability of a optical drive to prevent errors when creating a copy. The test is run in two steps: The Create Image feature first creates an image file of your test disc and saves it on the hard drive. After this, the Run Test feature reads the data on your test disc in order to compare it with the image file.
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 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
| 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.
| DAE quality |
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.