turning off audio commentary

I download DVDs using the DVDFab 10 program. Some of the DVDs have only one track to download (the other tracks are only a few seconds or minutes long). When the downloaded track is played by PLEX it contains the audio commentary. Does anyone know of a way to eliminate the commentary other than trying to find a DVD that doesn’t have one?

Use a different ripper software.
It is very apparent that DVDFab is messing up.

Google MakeMKV