I am new to linux and ffmpeg. I am trying to convert a series of photos taken by my webcam into a well compressed mpeg4 movie. Here is what I thought would work but did not. ffmpeg -i photo_%03d.jpg -vcodec msmpeg4 testOutput.avi ffmpeg version 0.4.9-pre1, build 4738, Copyright (c) 2000-2004 Fabrice Bellard configuration: --build i386-linux --enable-gpl --enable-pp --enable-zlib --enable-vorbis --enable-a52 --enable-dts --disable-mmx --disable-debug --prefix=/usr built on Feb 5 2005 01:20:01, gcc: 3.3.5 (Debian 1:3.3.5-6ubuntu1) Input #0, image2, from 'photo_5%03d.jpg': Duration: 00:00:04.0, start: 0.000000, bitrate: N/A Stream #0.0: Video: mjpeg, 640x480, 25.00 fps File 'testOutput.avi' already exists. Overwrite ? [y/N] y Output #0, avi, to 'testOutput.avi': Stream #0.0: Video: msmpeg4, 640x480, 25.00 fps, q=2-31, 200 kb/s Stream mapping: Stream #0.0 -> #0.0 [msmpeg4 @ 0x82d0e1c]colorspace not supported Error while opening codec for stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height Does anyone know what I am doing wrong? Any help would be appreciated. Thanks!! Gavin