the commentary from the third audio stream, #0.3. If I don't tell ffmpeg which one to use, it'll go ah... stream #0.0 for the video and #0.5 for the audio. If any streams in a video file are mapped with "-map... o_bit_rate -aspect 16:9 newmovie.mpg
</code>
Or, if you'd rather use MP2 audio and a lower audio bit ... .mpg
</code>
Obviously replace "16:9" with "4:3" if you're reworking a 4:3 aspect ratio movie. Also,
