I just had a 722k go through an incremental hard disk failure and learned a few things that I wish had been sticky-posted here. As it is said, there are two kinds of hard disks: those that have failed and those that are going to fail. First, you may or my not have a system that can back up timers to your remote, and if you have it, it might not work. Therefore, copy out your timers periodically. One way is to display the timers using dishanywhere and take a picture of the screen, perhaps using a tool like the Snipping Tool. Second, once you start experiencing hard disk failures, even if you can recover from them, your box's days are numbered. Get an external hard disk and move all recordings to it every day. Too bad we can't back up other important data that way, or is there something I've missed? (If you change to a different kind of box, your recordings are probably not going to be readable from the disk.) Third, if your box dies, you need NOT sign up for the protection plan. Customer service was very good and didn't waste more than 20-30 minutes or so of my time verifying that my 722k had left this mortal coil. They shipped me a new one that I got in a day, and it was pretty easy setting it up. (If you don't want dual mode, you have to change that with a button on the front of the box, and this is not in the instructions.)