I've occasionally been getting "S.M.A.R.T. Status Bad: Backup Drive and Replace" error messages for a 100GB Western Digital drive since I re-connected it last night after unsuccessfully troubleshooting a WIndows installation. I fear the magnetic end of a dual-ended screwdriver may have accidentally got too close to the drive (I'd been using it error-free for weeks). No errors are reported when scanning the surface of the drive with Windows Disk Management, CHKDSK or the Western Digital diagnostic utility but the error would reappear, often at the next reboot (only to then disappear again after a few more reboots). I checked the S.M.A.R.T. Disk information and nothing seems too alarming, except for the UltraDMA CRC Error Rate: the current value is 200, the threshold is 0 and the worst value is 253. How can the worst value be higher then the current value?! Would this indicate a problem with S.M.A.R.T. Disk Information that could be triggering a false error message? Thanks to all.