I'm about to take delivery of an A4. The largest SD card it can handle according to the MMI user manual is 128 GB. That is fine for all my music (about 8,500 tracks). Equally the 10GB Jukebox will be fine for 1,200 or so tracks. On looking at the MMI manual, it says this: "Filling the jukebox Press the MEDIA button. Press the left control button repeatedly until the source overview link► is displayed. Select one of the following sources to copy to the jukebox: SD card, CD-ROM*, DVD-ROM*, USB storage device*. Important: The media centre (e.g. tracks, albums) must be open. To select an entry: Select an entry from the media centre. Select: right control button > Copy to jukebox > This entry or Entire list. Important: The playlist must be open. Refer to link►. To choose a track: Select the track currently being played. Select: right control button > Copy to jukebox > This track/Entire album or This artist." Surely that doesn't mean that before I can play direct from the SD card or load 10GB up onto the jukebox I have to open every last track out of the folders (artists, albums, playlists etc.) that they are currently in on the SD card? If anyone plays music in this way via one of the SD card slots and/or the Jukebox i'd welcome some real world feedback. I know I could just play it all from an iPod or my phone, but since it has the SD card functionality I thought that would be the simplest method of playing music. I've gone for the Bang and Olufsen and so music is a big deal for me in the car.