Overall it's not a bad player. It's just that it could be better with some minor attention to detail in a few key areas. The file playback thing was unexpected, so, the fact that it doesn't work doesn't really bother me. Other players at least decode the audio for you and play it as LPCM. I would like to at least see that kind of behavior. MKV with HD audio is becoming somewhat of a standard these days. The fact that you can't get ANY audio from it at all is disheartening for sure. I was also hoping they'd change the audio options page to show the non-decoded HD audio option at all times, but, alas, no, that's not the case. I haven't checked DVD playback to see if anything's improved there yet.