2 DVD's on 1 disc

[ROG]

Hi,

excuse if I'm bothering someone by asking a question which has already been answered, but I couldn't find it.

I want to put two small animation movies (about 1 gig each) on one disc. Namely macros 3 and 4, which are on a double sided disc.

Could someone point me to a guide, manual, clues?

edit: I only care about the main movie

thanks in advance.


Ps. what's luminance?