R@nSiD > 'Technically no its not illegal. Once you purchase anything, you are entitled to make a backup of it (as many as you deem necessary). Laws are broken once you sell or distribute those copies.' What I meant was if you have an MP3 and you played it on iTunes and it changed the MP3 to a ACC or the audio format they use, do you not think that it would be criminal that a program with no authorisation from the user did the covert under the cover of playing the file?