My external HD was working fine for a few years on my VIP 622 and now it constantly loses all of the programming (whereas the receiver stops recognizing it and says it needs to reformat everything and reboot). It's a regular occurrence so it probably isn't in my best interest to try and back it up. Just wondering if anyone else had the issue and can speculate if the issue is with the Hard Drive or the Receiver. I'd buy a new HD, but fear that if the HD is not the issue, the same thing will happen.