Can you connect it to a pc to check the drive ? If you can and you know how to use fdisk then that would be a good way to see the drive and attempt to save changes to it. You could also give it a Fat32 format while you are there to prove it will accept a format.
I had problems with two IDE drives on a pc when it crashed due to me setting memory in bios to "aggressive". It was aggressive I must admit as it destroyed two different hard drives ! I downloaded the drive manufacturers dos diagnostic tools for the drives and they were both proved dead (Unable to see them at all with fdisk either). I sent a nice email to the motherboard manufacturer and asked them to rename the "agressive" mode to "self - destruct"
:lol: