I get an unplayable avi file with x264 cli. May be I do something wrong :confused: The same cmd line produce perfect mkv and mp4! I've tried both mplayer and mplayerc with ffdshow. If I reduce trim range in avs I get a playable file. The same thing if I change bframes. Avs: Mpeg2Source("HPII.d2v", idct=2).Crop(0,72,-0,-72).trim(2050,2100).ConvertToYV12() cmd line: x264 --progress -A none -r 1 --me dia --bframes 3 --qcomp 0.6 --ipratio 1.40 --pbratio 1.30 --filter 3:3 -B400 --sar 61:45 -o HPII-CLI-test.avi HPII-CLI.avs mplayer output: Seek failed Seek failed AVI: Missing video stream!? Contact the author, it may be a bug :( x264 version (by sharktooth): x264 core:33 svn-273M Anyone could solve it? thank you!