This topic is a discussion of hard drive software, information, tips and tricks.

SpinRite is the hard drive swiss army knife.

Zero Assumption Recovery is a hard disk recovery tool kit.

FileSalvage is a data recovery tool kit, this will work with a variety of media types.

DataRescue another data recovery tool kit, which also works with a variety of media types.

MacForensicsLab a forensics tool kit.