Backup is the backup and archiving utility available to Mac users as part of the .Mac subscription service. Backup allows you to archive data to a CD, DVD, online or on other hard drives. Standard includes a series of ready-made presets for backing up iLife content, personal settings and the Home folder; in addition, scheduled backups can also be made.
Backup 3.1.2 is a highly recommended update for all users, as it incorporates improvements for the reliability of its operation, according to Apple. It also improves compatibility with Mac OS X 10.5 “Leopard”.
Web: Backup 3.1.2