@Echo off
Set AppName=D:\_Programs\MPlayer\
Set VideoBitrate=700
Set AudioBitrate=64
Set AudioSampleRate=22050
Set Audiocodec=mp3lame -lameopts abr:br=%AudioBitrate% -srate %AudioSampleRate%
Set Videocodec=mpeg4:vbitrate=%VideoBitrate% -xvidencopts bitrate=%VideoBitrate%
for %%f in (*.avi) do (
echo %%~nf
%AppName%mencoder.exe "%%~nf.avi" -idx -oac %Audiocodec% -ovc lavc -lavcopts vcodec=%Videocodec% -o "%%~nf.new.avi"
del %%f
)