Hello! I'm using ffmpeg to convert an uncompessed avi into a mpeg1 with following statement c:\> ffmpeg -i Spot_SCG_2004.avi -r 25 -b 500 -s 320x240 -vcodec mpeg1video -g 48 -ac 1 -ab 64 -ar 32000 preview.mpeg FFmpeg version SVN-r6618, Copyright (c) 2000-2006 Fabrice Bellard, et al. configuration: --enable-memalign-hack --enable-mingw32 --enable-mp3lame --ena ble-libogg --enable-vorbis --extra-cflags=-I/include --extra-ldflags=-L/lib libavutil version: 49.0.1 libavcodec version: 51.16.0 libavformat version: 50.5.0 built on Oct 10 2006 09:36:47, gcc: 3.4.2 (mingw-special) Input #0, avi, from 'Spot_SCG_2004.avi': Duration: 00:00:16.2, start: 0.000000, bitrate: 14750 kb/s Stream #0.0: Video: rawvideo, rgb565, 320x240, 12.00 fps(r) Output #0, mpeg, to 'preview.mpeg': Stream #0.0: Video: mpeg1video, yuv420p, 320x240, q=2-31, 0 kb/s, 25.00 fps(c) Stream mapping: Stream #0.0 -> #0.0 frame= 404 q=31.0 Lsize= 978kB time=16.1 bitrate= 497.0kbits/s video:317kB audio:0kB global headers:0kB muxing overhead 208.191697% But in the end the result isn't opportune. The whole movie is very green and you can hardly see anything. i have uploaded the two files origin and result packed: origin: http://www.werk3at.net/blk/ffmpeg/Spot_SCG_2004.rar (2,8 MB) result: http://www.werk3at.net/blk/ffmpeg/preview.rar (800 KB) thanks in advance for your help greets Richard