Comment miniDV (Score 1) 669
After a few years of trying to find the solution to this problem, I looked at my miniDV camera... I was happy to discover that people thought of it before (http://tech.slashdot.org/article.pl?sid=03/03/03/0246245&mode=nested&tid=126&ti%20d=137&tid=106). Same as tape backup, but no need to purchase more (expensive) hardware, if you happen to use a miniDV camcorder.
Even if you don't, those are much cheaper than "real" tape drives.