1 in 5 is probably a bit optimistic isn't it? I personally had this problem about a year ago. happened when I sent a firmware upgrade for my CD burner to my third HD(yes it was an accident). long story short, it used to be 4GB, now the BIOS only recognizes 2GB, and my burner died (no light or anything on boot, door won't open, etc..). and no, I did not recover any data. I can't remember the details, it was so long ago. I didn't fix it though, so the details would just add fluff anyway. But hey! the drive works fine now after formatting!