There are more than a dozen titles to list and each uses a slightly different system to add a file.
As presented you may not get a great answer other than go do it.
I just received a DVD that I could put in a DVD player and my computer and it would come up as a regular DVD, but then I could open up the DVD on my desktop like it was a folder and it had a sub folder that had actual mpeg file that I could drag onto my computer and play. So the DVD had both VTS and Mpeg files. I have Encore, along with the adobe suite. I can't figure out how to do this and it would be a great feature as we run a lot of promo videos that doing this would make it much easier to give to other groups and be easy for them to use it however they want