So seagate are OK then? What abo6t Toshiba? They keep coming up cheap cheap. I suppose reliability isn't too much of an issue for the Xbone drive - it's just for downloaded game data, can soon enough be redownloaded from teh xbox live.
(should probably note that by 2.5 inch what I really mean is usb bus powered. It's going to sit hidden in a shelf, I really don't care what size it is a long as it doesn't need a separate power cable)
Nah... the WD Reds are optimised for NAS (they are rated for double the load/unload cycles over, say, the WD Greens) but they can be used elsewhere as a regular drive too.