I have a 2.5" WD 1TB external hard drive that we loaded up with recordings on our old 722. We then upgraded to a Hopper last year and loaded it even more. It was only 60% full, and last week after a power outage, the Hopper stated it had an error 311 and the hard drive ceased to function. We got a new Hopper receiver from Dish, actually two, as the replacement had a dead USB port in the front. Neither of these replacement Hoppers will read the data on my 2.5" 1TB external hard drive that is USB powered and worked in two prior Dish receivers (722 and original Hopper). When I try to have the hard read on the new Hopper, it wants to format it (which I haven't done) and states that there are no events on it, although the Hopper says the external hard drive is 60% full. Anyone have any ideas on how to make the replacement Hopper read my external hard drive with over 100 recordings on it? Thanks!