How does DVDRB know which one is movie extra

[chris_j11]

There's a function;
MODE> Steal Space from Extra or Half-D1 for Extras or Half-D1 and Half Space for Extra

How does DVDRB knows which one is extra and which one is not

Here's my situation:
I'm backing up my Lord of the Rings-Return of the King
DVD Decypter then,
DVD Remake:
I kept the opening sequence of the DVD pretty much intack, except for the sound
I kept the menu the same to prevent any problem navigating to the DVD
I trimmed the movie, cutting the opening and closing credits, remove all sounds except 6-chan AC3 and 1 English subs
Remove all the extras

DVDRB:
Selected Half-D1 and Half Space for Extra and Steal Space from Extra (50%)

Since I removed all the extras will:
>DVDRB ignore the extra mode i selected
>Priorities the biggest file (movie) and make everyting else low quality
>How does DVDRB will know if I have 2 big files (Movie 1of2 and 2of2 = like the "The 2 Towers", movie split into2 DVD)

Basically I want to have the original menu intack, but I want to make sure DVDRB use most of the DVD space for the main movie(s)

[UncasMS]

the longest vts will be considered maoin movie iirc

so in your case i wonder what you think steal space from extras will be good for?

you have a menu and the main movie why use steal space from extras?