I have a DVD-movie that only takes up around 1.7Gb of space, it is already authored and has menus and all, like most DVD-movies have. I have copied the complete structure with VIDEO_TS (alla .BUP, .IFO and .VOB-files) to my HDD.
I have a couple of .VOB-files that I would like to add to this DVD-movie.
I have checked the IFO-files with IFOedit but you can't edit the IFO's in an easy way.

How can I add extra VOB-files to an aldready authored DVD-movie? And how can I access them, can I physically add some extra menu button or something?