I have just discovered that the 2910 will play back an mlp. file just like it would an .mp3 or .wma. I have tested on a cd in stereo and on a dvd in multichannel I would suspect that multi channel would not work on cd because of data rate i did not bother to test bacause you could only fit two or three track in hi rez multi channel any way. The tracks I tested were tracks that I backed up from non watermarked discs the backups from water marked discs of cource stopped after thirty seconds due to the water marks.anyway just thought it was interesting although not of much consequnce.