Use Backup's Full Backup Plan when backing up to a rewritable disc (CD-RW or DVD+-RW) in order to avoid potential data loss.
Backup 3 performs incremental backups--backing up only files that have changed since your last backup. This also occurs if you are backing up to a CD-RW or DVD+-RW. If you perform a backup to a CD-RW or DVD+-RW, and later wish to backup changes that have occurred in your backup set to the same disc, you should perform another Full Backup, rather than a normal backup. Performing a normal backup may lead you to replacing the full backup on your disc with only data that has recently changed.
To perform a full back up, in Backup choose Full Backup from the Plan menu.
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