I bought a Samsung YP-C1X that is a mass storage device and it plays OGG files :-) The problem is that I want to set up the music files without using the Windows software. I set up folders called 'music/artist/album/song'. All the 'music/artist' folders are visible but only the first 15 'music/artist' folders display sub folders. It works if I put all the songs in 'music/artist' folders. Samsung basically says to use Windows. I want to use any OS so manual setup is best. Does anyone know what the problem is with having folders organized the way I want or how I can test to figure out what the problem is?