question on AnyVideo Converter

I have been using Any Video Convertersoftware to convert video from one format to another, including extract audio from a video clip to MP3, pretty straightforward and easy to do.
I have one simple issue: I got VOB files with two different audio channels (English / French for example), Any Video Converter seems always convert taking the English audio track (audio 1), I have no way to tell it to take the French audio track (audio 2).
I appreciate if some of you can show me how to tell Any Video Converter to take the audio track 2 during the conversion.

Thanks