Good for you rabit. I was about to answer your post, but I can see that you are already working with Dave's prograam. Very neat eh?
DVD2one can also compile 2 movies (They call it join), but in my case, and with my set up, Dave's ,ethod is faster. Using d2o's joint function it takes me almost twice than if I were to compile the movies individually.
Enjoy
Totonho03
Do not know what you mean by subtittle......Is it something new? Are you referring to the movies's subtittle?