Comment Nothing to do with video (Score 1) 268
The underlying question has absolutely nothing to do with video, digitized from VHS or not. The question is, "How can I securely back up a shitload of data that I don't want to lose?"
Now that you've forgotten about the video aspect and just think of it as bytes, the problem is reduced to one that's been solved a zillion times over. Google "offsite backup".
Personally, I use RAID on my home NAS, and rsync the really important stuff daily to an encrypted 1.5TB drive sitting on my desk at work. If you don't have the bandwidth you could do essentially the same thing by carrying your external backup drive back and forth to your office (or friend's house, or safe-deposit box) weekly or monthly. Have a couple backup drives and just rotate them.