> You can use ALSA to pass through AC3 and DTS in mplayer by providing a > 'alsa:spdif' as a default audio output (mplayer option 'ao') and > 'hwac3,hwdts,' as audio codec (mplayer option 'ac', note the comma!). Thank you for your explanations, alsa:device=spdif works for me. I will also try the solution provided by Colin Guthrie.