Just wanted to recount my recent experience with a DVR disk failure. The 625 has been having occassional freezeups for several weeks. Then, suddenly, at the most inconvient moment (of course) as I turn on one of the tuners I get greeted with the 0521 error. No access to the HD, but both tuners are intact. After I calmed down I called the customer support number, got to Technical Support and the overseas tech made me go through a few simple steps (turn off and on, disconnect and reconnect power) to make sure the drive was really toast. After about 10 minutes I was told I needed to pay $14.95 for shipping of a new receiver. This was a Friday night. The new unit was received on Wednesday (within the 5-day window I was promised). Replacing it was a matter of half an hour, taking my time, waiting for the firmware update download, testing both tuners. I was pleasantly surprised that I now had 160 hours capacity on the drive - only now did I find out that it's just a repartitioned drive, if you had no recordings at any one time that update was applied automatically starting on October last year. Would have been nice to get that information from Dish then! Anyway, packed the old unit up and sent to Dish via the prepaid shipping box. So overall a painless experience, of course losing the disk full of recordings was not pleasant and neither was having to watch live TV on a busy sports weekend. You really do get hooked on the DVR. The drive lasted for just about two years. Hope the new one will hold up at least as long!