I tried to play a ripped DVD (mencoder -oac copy -ovc copy) and I had some problems. I have been able to play it with mplayer from Ubuntu 9.10 repo, but not SVN. I think this is in the last several weeks or due to the upgrade from 9.04. Anyways, I compiled fresh SVN and below is what I get (plus a lot of invalid mb type in I Frame and ac-tex damaged at errors). I have played some mp4 files, some flv files, and an MP4 converted to mpeg2video (mencoder -oac copy -ovc lavc -lavcopts vcodec=mpeg2video) and they all played fine. What could be the culprit? I'm on Ubuntu 9.10 64-bit. MPlayer SVN-r29987-4.4.1 (C) 2000-2009 MPlayer Team Playing /home/cmiller/Desktop/fight-club/fight-club.avi. AVI file format detected. [aviheader] Video stream found, -vid 0 [aviheader] Audio stream found, -aid 1 AVI: ODML: Building ODML index (2 superindexchunks). VIDEO: [^B] 720x480 24bpp 29.970 fps 6219.5 kbps (759.2 kbyte/s) Clip info: Software: MEncoder SVN-r29237-4.4.1 ========================================================================== Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] VDecoder init failed :( Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2) ========================================================================== ========================================================================== Opening audio decoder: [liba52] AC3 decoding with liba52 AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000) Selected audio codec: [a52] afm: liba52 (AC3-liba52) ========================================================================== AO: [oss] 48000Hz 2ch s16le (2 bytes per sample) Starting playback... Movie-Aspect is 1.78:1 - prescaling to correct movie aspect. VO: [xv] 720x480 => 854x480 Planar YV12 [mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.0 V: 0.0 A-V: 0.013 ct: 0.000 1/ 1 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 991 DC, 991 AC, 991 MV errors A: 0.0 V: 0.0 A-V: 0.000 ct: 0.000 2/ 2 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.1 V: 0.1 A-V: 0.000 ct: 0.000 3/ 3 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.1 V: 0.1 A-V: 0.000 ct: 0.000 4/ 4 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.1 V: 0.1 A-V: 0.000 ct: 0.000 5/ 5 ??% ??% ??,?% 0 0 ^[[J^MA: 0.2 V: 0.2 A-V: 0.000 ct: 0.000 6/ 6 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.2 V: 0.2 A-V: 0.000 ct: 0.000 7/ 7 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.2 V: 0.2 A-V: 0.000 ct: 0.000 8/ 8 ??% ??% ??,?% 0 0 ^[[J^MA: 0.3 V: 0.3 A-V: 0.000 ct: 0.000 9/ 9 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.3 V: 0.3 A-V: 0.000 ct: 0.000 10/ 10 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.3 V: 0.3 A-V: 0.000 ct: 0.000 11/ 11 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.4 V: 0.4 A-V: 0.000 ct: 0.000 12/ 12 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.4 V: 0.4 A-V: 0.000 ct: 0.000 13/ 13 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1126 DC, 1126 AC, 1126 MV errors A: 0.4 V: 0.4 A-V: 0.000 ct: 0.000 14/ 14 ??% ??% ??,?% 0 0 ^[[J^MA: 0.5 V: 0.5 A-V: 0.000 ct: 0.000 15/ 15 ??% ??% ??,?% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.5 V: 0.5 A-V: 0.000 ct: 0.000 16/ 16 10% 1% 0.3% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors A: 0.5 V: 0.5 A-V: 0.000 ct: 0.000 17/ 17 10% 1% 0.3% 0 0 ^[[J^M[mpeg2video @ 0xd8c9e0]concealing 1350 DC, 1350 AC, 1350 MV errors