As far as I can tell, there is one option for choosing which audio track loads by default when you fire up a video file: by preferred language. Set it to English, and the player will automatically select an English audio track. While this may sound good in theory, it doesn't make much sense to me in practice, as anytime I go to watch a foreign language movie/program that has an English language dub or commentary track, that is the track that will play by default. It seems to me there should be an option to just use whichever audio track is actually tagged as the default within the file.