I dunno what to tell you. As a last result try opening it up and fucking around in there, I've gotten one drive to work after that long enough to get my data off, but your mileage will vary. Try and do it in a dust-free zone if you can, if anything gets in there you'll start to get bad sectors soon. You probably will anyway, but hopefully not while you're copying the data...

Anyway really don't do this unless you have no other option.