For Mac users: 1. Hook up your PSA player with the Mac PC using the supplied USB cable. 2. Drag and drop the selected files to your PSA player, which is named as Untitled disk on the desktop. 3. Wait until the transfer process is complete, before disconnecting the player from your computer. For Mac users, I-Tunes version 2.0 or higher may also be used to download music onto your PSA player for more details about using I-Tunes, please visit http://www.info.apple.com/user/itunes.