how to reauthor features from 2 discs w/ menus intact

[lockonx]

i'm a noob so i'm going to try to explain my situation as best as possible. i want to back up the special features from a 2-disc dvd set onto a single blank dvd. in the original, disc 1 holds the feature film along w/ a few extras; disc 2 holds a couple of extras & 15 trailers for unrelated movies. without the trailers the 2nd disc is only like 400 mb and i don't want to waste the extra space. so what i want to do is remove the film and trailers from the 2 discs, and put the special features from disc 1 onto an almost exact copy of disc 2 (sans trailers) with disc 1's extras menu intact. kind of like cut and paste the extras & its menu from disc 1 onto disc 2. i really want to keep the dvd structure as intact as possible. just replace the trailers menu with disc 1's extras menu.

the problem is, i have no idea what programs and actions i need to take in order to achieve this. can anyone help me here?

[Baldrick]

Vobblanker to remove stuff. DVDRemake Pro to join and keep menus.