incrediBILL - 8:30 pm on May 8, 2009 (gmt 0)

I used to work in the HDD industry and this is my regimen:

To start, overwrite all the data across the entire drive a couple of times to ensure thorough saturation using tools like a real low level reformat of the drive, or WIPE and ZAP. Do not use a high level reformat as all your data will still be there, just the directory rewritten, low level reformat is the only way to go.

Now extract the platters and DeGauss the little buggers.

Last but not least, bust them into little pieces because to the best of my knowledge there is no tool available that can read a Reformatted DeGaussed HDD 100 Piece Puzzle