I've had the same external HD on my Hopper 3 for several years, and I'm starting to see some signs of age, specifically a delay in spinning up and recognition by the Hopper on a cold start. I have >700 movies recorded that represent a lot of time and effort on my part that I am extremely reluctant to see flushed if the drive fails. I have read here about the impossibility of viewing videos copied from the Dish external HD to other media, and about Dish somehow salting the HD encryption with the account number, so I'm not asking about that. I would settle for a relatively simple way to periodically duplicate my hard drive in such a way that, in the event of a failure of my primary HD, I could swap in the backup unit, and only lose those movies that have been recorded since last duplication. I also read here about a solution using RAID1, but that is beyond what is reasonably feasible for me to do here (NTM that RAID1 cluster HW can, in theory at least, fail in such a way as to render both copies unreadable). So, my question is: if I remove my external HD and clone it to an identical drive, would I be able to swap in that backup drive in the event my current Hopper external HD fails, and view the contents on the same Hopper? It seems to me this should work, as the ext3 (or whatever is used) format and the encrypted content on a bit-wise cloned copy should be identical. OTOH, if Dish is somehow capturing the serial number of the HD, or any other information available from the HD ROM that is unique to that specific drive, they might be able to prevent this. Anyone done this and succeeded (or failed)? Other informed thoughts? Thanks!