Austin's TIVO DVR isn't working, except for flashing lights. Leo says there's a place in LA called WeakKnees, which can replace his hard drive. There's also FixMyTIVO.com, which says it could be a bad hard drive or a bad motherboard. If it's a bad hard drive, he can get a hard drive kit to replace it. But if it's a bad motherboard, then he'll have to buy a new device.
He could also try drive recovery using SpinRite. It doesn't care what the drive format is, it just reads sectors and then moves it from bad sectors. It could be worth a try if he really wants what's on that drive.