I want sure where to put this so move to proper forum if needed.

I would like to know how I can edit a dvd(s) I backed up.
We all know that Paramount does lackluster jobs on the F13 series dvds.
I would like to add to them if I can.Make my own box set since thiers is going to be nothing more that what they already have.
I would like to add picture galleries,and alternate trailers if they have them while keeping all original stuff (movie,chapters,menues)

Software I have:
Adobe Premire Pro
DVDXCOPY Platinum

Thank you