DV Backup allows you to use your digital camcorder to backup hard disk data. Just select the archive (made by e.g. Stuffit, Disk Copy etc) and DV Backup does the rest. Capacity is 5GB per hour of DV tape (10GB if no error recovery is needed) in SP mode, 1.5 times more in LP mode. Also works with Digital8 camcorders. Compatible with PAL and NTSC devices.
http://www.apple.com/downloads/macos.../dvbackup.html
Try it just for fun!