Hi
I'm backing up a DVD that launch a first menu,
where I can choose between, widescreen & full screen.

The DVD contain the 2 versions of the movie, I only keep Widescreen vobs & replace the Fullscreens vobs by a small one to keep the DVD structure.
I would like my backup to launch directly to the widescreen menu.

If it's possible, what do I have to edit to do it ?

I try to search what to edit in the IFO but didn' t find,
as I don' t know much about the IFO "structure".

I think I got to edit VIDEO_TS.IFO/VMGM_PGCI_UT/PGC command table
what is Gpreg that are in some Pre or Post Command?