Ok, I use now a different command: mencoder -of lavf -lavfopts format=mp4 -oac lavc -ovc lavc -lavcopts aglobal=1:vglobal=1:acodec=libfaac:abitrate=64:vcodec=mpeg4:keyint=25 -ofps 25 -af lavcresample=44100 -mc 0 -noskip 100124_sendung_neues_p.mp4 -o 100124_sendung_neues_p-2.mp4 It does not use h264, but it works and my Nokia N97 can play the video just perfect. Malte