The sample used is the first 1MB of: http://samples.ffmpeg.org/A-codecs/lossless/luckynight.rmvb Some stats before: Overall: 63.5% rmdec.c: 84.9% ralf.c: 0.0% Some stats after: Overall: 63.6% rmdec.c: 86.1% ralf.c: 82.1% Enjoy! - Derek