1.) Run Norton WipeDisk pgm writing 1s & 0s three
times.
2.) Low level format
3.) WipeDisk three more times.
Trust me, when I was done, there wasn't anything recoverable there.
If you did:
4) Smash disk into small pieces and heat until
molten slag
then you protected yourself against people
armed with a scanning tunneling microscope
(which are surprisingly cheap these days ...)
Of course, that begs the question, why did
you bother with steps 1-3??
Or maybe things were just not as
secure as you thought?
Antonio