Two Dvd's to one disc..

[Sled Dog]

I have some Dvd's that have only perhaps 2 gig of files on them.
What I am wondering is there a program I can use that will combine
two movies, with their original menues etc, to one set of files I can
burn to one Dvd. Something that doesn't transcode or re-encode,
perhaps just puts in a new menu allowing to choose between
the two movies original menus. Anyone use such a program?
Not that Dvd blanks are that expensive, just thought if I could
backup to one disc would be ok.

Thanks

[alsyed]

dvd remake pro