Quote Originally Posted by MARK EG
i realise that you can record it back in through a sound card but i just want to know if there's a way to make sure you can't copy an mp3 inside the computer.

encryption for sure, but what program does this??? it's not really an issue for me that someone will eventually crack the encryption, but i'd just like to know what that encrytion could be and how ot go about it.
go see the iTunes Music Store and how they handle it. there's likely something out there for the layman, but i dunno what it is. probably in that wiki link.

however like it was said, this is a battle already lost before it's begun. if you can get someone to pay for the mp3 in the first place, consider yourself successful. EVERYTHING can be copied. remember when they wanted to do away with cassette tapes......?