Main movie and extras into 1 file? DVD to AVI

[Pericles]

I've used DVD Decrypter and Auto GK to backup my DVDs to my HDD in .avi format many times. However, instead of having the main movie and the extras as seperate files, I would like to have them all as one file. I've ripped them seperately with DVD Decrypter and converted them seperately with Auto GK, but I end up with different resolution and bitrates, thereby making them well-night impossible to append with VDub. If I use DVD Decrypter to rip the main movie and the extras seperately but put them all in the same folder, will Auto GK put all the main movie and extras files in that folder together into 1 .avi file? If not, how can I do what I want to do?

Thanks in advance.

[len0x]

First, putting extras and main movie together is not a good idea because they might require different processing (i.e. main movie is 24fps film, while extras can be 30fps hybrid ot NTSC material). So if they were to be processed together then quality would suffer.
Second if you're sure that they are the same (like PAL progressive source that have exact the same aspect ratio, which is highly unlikely...) then you can edit mutiple PGCs into one PGC with VobEdit(required to avoid audio synch issues) and feed it into AutoGK. Not recommeneded though.