Adding VOB Trailers

[Scarpad]

I've downloaded some Dolby Digital And DTS trailers in VOB format . I'd like to add them to the beginning of some of my backups so they will play prior to the movie starting. Do I simply include them as an additional VOB? How exactly can I get this to work?

[Doidasso]

I have tried adding them to the VIDEO_TS folder having all been renamed with the other movie vob's, and finally deleting all ifo's and bup's and creating new ones with IFO edit - making sure to get the vts sectors. End result = Movie plays fine with the trailer at the end of the movie on PowerDVD, but on my Sony setop the trailer wont show up at all...
If there is any step I am missing will someone please shed some light on this. Thanks in advance.