No, because residual magnetic images can still be picked up, even after 7 times. However, not many agencies in the world are able to recover data that thouroughly deleted, if you get my drift. For "normal" users, a DOD standard erase is usually OK, but to be absolutely, positivly sure, you need to erase the drive to DOD standards, then put it through a metal shredder. I'm NOT kidding. That's a requirement at some government installations.
Mark
Well, when I sold my old 350mhz E-machine for $50 to a 75 year old man that uses dialup to do his "covert" work, I simply reformated and reinstalled OS. Gotta live dangerously, have a little risk in life.
A friend of mine (UPS driver) was given a PC by a well off customer. They didn't even bother to delete the data files. He tells me that he wished they had. The man had a bunch of nude pics of his wife on the HD and he said it was *not* a pretty sight.