Ok Guys here is the latest on the Audio Upgrade, now this is all fact not conjecture or guesswork or hear say but straight up facts. You E60 E61 Series BMW fitted with the Business Audio and Navigation pack WILL play MP3s from a DVD or CD. You just need the correct software update, however this might not work if all your other software updates have not been done as they are due. This was my scenario. Now I have full functionality of the MP3 section including playlist display in the iDrive screen. You will need to find a good BMW technician and bear in mind he or she may not be at you local main dealer. Now just need to sort speakers and amp and we will be happy.