Unless instructed otherwise, ffmpeg will operate on the first available sound track.
It so happens that I have such a .vob file on-disk, so let's see what ffmpeg thinks of it:
<co... g to process the given stream. As we'll see later on, ffmpeg can process input from several files. "in... rom the reworked .wav audio file and transcode it on-the-fly.
Solution 1 is already the object of ano
