Checking the Integrity of a CD or DVD

Checking the integrity of a CD or DVD makes sure that the files written to the disc are intact and have not been corrupted during the burning process.

The integrity check is done using the “MD5 digest” algorithm, which creates a “fingerprint” of the data on the media. Each time you burn a CD or DVD, and the Image checksum plugin is enabled (see Section 8 ― Plugins for more information), Brasero adds a MD5 file to the disc in order to perform integrity checks at a later date.

Brasero performs an integrity check after each burning session, checking the automatically generated file. Usually this process is longer than using an external MD5 file.

To check the integrity of a disc:

  1. Insert the CD or DVD to be checked into the drive.
  2. From the menu bar, choose Tools ▸ Check Integrity, or press Ctrl+F.
  3. You can check the integrity by using a MD5 file or by letting Brasero automatically perform a check on the media.
    • Select the Use a md5 file to check the disc option to use an MD5 file.
    • Click on the None button under the previously mentioned option and select an MD5 file, usually ending with the .md5 extension.
  4. Click on the Check button to start the integrity check.

If the integrity check is successful, Brasero will notify you with a File integrity check success dialog; otherwise, the File integrity check error dialog will be displayed.