I can't get the TomTom to play the music on my SD card. I have tried three different cards and followed the instructions on Tom Tom home. I have talked with Tom Tom support several times and had them guide me through the process. Someone from a higher level of support was supposed to e-mail or call me but I haven't heard from them. All my songs are in mp3 format and I have tried a 1-2- and 4 GB card.