I have a selection of music on a 8GB sd card that files fine on my Concert III stereo. I created a playlist for this music using Playlist Creator and selected tracks off the SD card to add to the playlist. The playlist was added to the root directory of the SD card and is clearly visible when inserted in the stereo - but - for some reason not all the tracks are showing up in the playlist, I can play these tracks fine within the album folder but they don't show up in the playlist? The playlist is a .m3u file. Any ideas?