Possible Duplicate: How can I reliably erase all information on a hard drive? I'm looking to securely erase my files. Is shred the best option besides ditching the hardware? To what lengths ...
I was reading another post on destroying IDE drives, and how you could remove data, wipe it, or just destroy the drive. The removed data would still be there in some state, although not easily ...
As storage technologies change over time, using different encodings and remappings to deal with sector errors, the best way to permanently erase/wipe/shred data changes also. Methods for flash drives ...