most methods here can be foiled by forensic methods (not a perfect recovery, just 'some' data) - as long as there is magnetic surface left, things can be read - no matter how fragmented it may be
1) take drive platter(s) out
2) use a grinder/sander to take the entire(!) disk surface off (both sides)
no recovery method known to man will recover data
little effort
little expense (no rockets required
)
perfect obliteration
__________________
believe me - without free porn, just as many people will seek porn out on the Internet, and many more will pay if there is no free alternative, its not like sex is a fad - it can be milked much like any renewable resource - long term
i wasn't born with enough middle fingers
- Marilyn Manson