I think its the h264 that is giving you the trouble. You need to recompile ffmpeg with the --enable-x264 option. (While you are at it, might as well also do --enable-xvid, --enable-faac. Expect to have to install some -devel package prerequisites. -Charles der.hans wrote: > $ ffmpeg -i cimg2112.mov cimg2112.avi FFmpeg version SVN-rUNKNOWN, > Copyright (c) 2000-2007 Fabrice Bellard, et > al. > configuration: --enable-gpl --enable-pp --enable-swscaler > --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg > --enable-libgsm --enable-dc1394 --disable-debug --enable-shared > --prefix=/usr > libavutil version: 1d.49.3.0 > libavcodec version: 1d.51.38.0 > libavformat version: 1d.51.10.0 > built on Mar 12 2008 14:31:53, gcc: 4.2.3 (Ubuntu 4.2.3-2ubuntu4) > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cimg2112.mov': > Duration: 00:00:01.6, start: 0.000000, bitrate: 14266 kb/s > Stream #0.0(eng): Video:* h264*, yuv420p, 1920x1080, 59.94 fps(r) > Stream #0.1(eng): Audio: 0x1100736d, 44100 Hz, stereo > Output #0, avi, to 'cimg2112.avi': > Stream #0.0: Video: mpeg4, yuv420p, 1920x1080, q=2-31, 200 kb/s, 59.94 > fps(c) > Stream #0.1: Audio: mp2, 44100 Hz, stereo, 64 kb/s > Stream mapping: > Stream #0.0 -> #0.0 > Stream #0.1 -> #0.1 > Unsupported codec (id=0) for input stream #0.1 >