DVDFab Plat 3.2.0 - generic no audio

Am trying to use my registered copy to take tracks from “Over there” DVD to put onto Mobile Generic - creates AVI OK but no audio…

On select screen the video tracks I want are ticked, and the audio window has a dot in the select box saying English AC-3/5.1 which I can’t change.

Am I doing something wrong ?

Thanks for any help !