Backup4all for U3

Backup4all for U3 is a portable backup software that performs full, incremental, differential and mirror backups. Can be configured to automatically run a backup when USB is connected. Creates standard zip files or exact copies of files, spans to multiple disks, keeps track of file versions, has built-in CD/DVD burner, backs up to FTP, backs up open files, sends email notifications and has AES encryption support.