Hi, With the video file you will found at http://dl.free.fr/pPpCUreUq the sound track should start to play 14 seconds after the video track beginning but MPlayer plays it immediately. The following players work as expected while playing this video file: Totem 2.22.2 (with gstreamer 0.10.20) Xine 0.99.5 VLC 0.8.6i Media Player Classic 6.4.9.0 Windows Media Player 11.0 (yes I even tried that one) Can someone confirm this bug? Cheers, -- Sébastien Mazy