I am wondering if Bass Thumper means extract the audio from a video and convert to a MP3? I do this all the time in Studio One Pro. I can import the video track and extract the audio to a track of it's own. Then simply export the audio to a MP3. Just a thought.
Nope. All 3 quotes I give above use the term "convert" or "converting" not "extract".
They use the term convert, so I use the term convert.
In any event, RealPlayer does this well.