Never seen this before.
A HDD of mine (IBM Deskstar 20GB IC35L020AVER07-0) 'died' when I restarted Windows (XP btw FWIW). Windows shut down OK seemingly but wouldn't restart.
It totally 'locked up' the PC with no error message. Never seen anything quite like that before so it took me a little while to pinpoint it. The BIOS found the drive OK btw.
Anyway, I got things sorted and then re-attached it as a secondary drive.
Trying to look at it, Windows Explorer 'froze' for a bit but it did load a drive icon eventually. However Windows Explorer was of no further help.
I then used XP's command.com and got the cryptic message 'cyclic redundancy error'.
Any ideas what's up ? Is the drive destined for silicon hell or is it recoverable ? I'm wondering if the system area's data's been trashed for example.