What format is the music stored in?
Protected MPEG-4 container files with encoded AAC streams (*.m4p) at 128kbps. Every song purchased from iTMS is encoded in Apple’s Fairplay digital rights management (DRM) that is built into the QuickTime technology used in iTunes and iPod music players. Fairplay digitally encrypts AAC audio files so that they can only be played back on authorised computers.
