After replacing my SD card, all the playlists I had made for the Music Player app still show their titles, but they are all empty. Can someone please tell me where this app stores its playlists? I tried creating a new playlist, which I named "TEST FOR LOCATION". Then I put one music track in it. I then used Root Explorer to back out all the way to the root folder, so that my subsequent search for the above name would search the entire phone. It found nothing!!?? Where should this playlist be? Edit: Never mind. After hours of testing I have found Gone MAD Music Player, which has a USER CONFIGURABLE setting for where M3U playlists are stored, so I can back them up.