This depends on what kind of data you have. If you have gigs of information, you may need to revert to a DVD-R, tape, or another hard drive. Other sources of backup are jump drives, CD-R's, floppy disks, zip drives, etc. This really depends on your needs. If you not sure, just email us with your data file sizes or about how many mp3 or pictures you have and we will give you our suggestion. (Return to FAQ page)