How to add an additionnal audio AC3 to multiple VOB files?

Hi! Here is the situation.

I have TV Show on DVD with english and spanish audio. I got the french audio tracks (AC3 format) I want to add the french audio to the current vob file to have the 3 languages audio. The VOB file are in 2 separate file for each episodes.

Wich soft do you recommend to use to ‘‘batch’’ the process? ( I have many episode on many dvd)

And what it’s the step to do that?

P.S. Sorry if i’m the wrong section! I also do a search but I found nothing similar with my current situation.

Thanks a lot!

Anobody can help?

Check out Muxman software.