I have encoded my music as ogg vorbis files and am trying to transfer them onto the DMS. The problem is that I get an error message saying "Phatnoise DMS can only play MP3, WMA, WAV, and FLAC files at 44.100, 22.050, & 8-kHz frequencies and AA format 4 files". I know that the Phatbox is supposed to support the ogg file format (I used PMM to encode them), so what do I need to do to get this to work?