Nero SecurDisc Viewer can be used to check the data integrity of a SecurDisc disc by using the checksum feature. The data integrity check warns you if the data on a disc is at risk of disc decay so that you have time to back it up to another disc. 
Proceed as follows:
Click the Integrity button.
The File Integrity Check window is opened and the integrity check is carried out. You can follow the progess with the status bar and the displayed messages.
As soon as the integrity check is finished, a message is displayed to notify you about the result of the check.

Checking data integrity