like a SATA drive, be sure and use the factory diagnostic disk - it will ignore sector/clusters marked damaged by the malware, and zero fill them anyway. Also don't forget to flash the firmware on the drive controllers if they have one. (HDD/DVD) I don't know why, but I haven't had much luck with Darik's boot and nuke.

Of course I always try Kaspersky's or Avast's rescue DVD first.