First some caveats... I know the Hopper is fairly new, most are leased, and it's easy to get a replacement from Dish whether owned or leased. I bought a HWS and want to be proactive by setting aside a replacement internal hard drive now while they're still available on the market (admittedly conjecture, but 722 and 722k replacement drives are very scarce now and as I said, I want to be proactive). I have had bad experience with the quality of Dish refurbs and estimate that after the a year has passed without failure that 5 or so years down the road the most likely point of failure for my Hopper will be the hard drive. I don't want to take the risk of getting an otherwise defective refurb should I experience a diagnosable hard drive failure with my current non-refurbed unit. What I've learned by Googling is that the hard drive used in the Hopper and HWS is likely a 2TB Seagate Pipeline hard drive. No specific model number has surfaced. Looking online for that generic drive spec leads to only sale listings stating this drive has been discontinued. So, finally!, my question is whether there is any expertise out there as to available hard drive models that will serve as workable (I know the Dish Hopper firmware will only recognize certain drives) spares for my HWS internal drive?