[rdouglass]

I just got rid of some very old PC's recently for the company I work for and the disposal company has a "Certifiable" HD destruction method. They randomly write over the complete drive a minimum of 20 times then they physically shred the drive - just like a paper shredder only for hard drives.

I saw a bucket of stuff that came out of the shredder. I could not see how anyone could put one of the drives back together. The pieces were smaller than 1/4 inch. I guess maybe if they shredded only 1 drive someone might be able to but get 5 drives shredded into the same bucket; well, it looks improbable if not impossible.