can you put your encoding command line? have you try something like: mencoder input.avi -o output.flv -of lavf \ -oac mp3 lame -lameopts abr: br=56 -srate 22050 -ovc lavc \ -lavcopts vcodec=flv :vbitrate=500: mbd=2:mv0 :trell:v4mv: cbp:last_pred= 3 you can view the documentation online here: www.mplayerhq.hu/DOCS/HTML/en/menc-feat-selecting-codec.html On Feb 8, 2012 2:20 AM, "R. Clayton" <rvclayton@verizon.net> wrote: