DVD Shrink - freeware to 'shrink' DVD VOBs to 4.3Gb
If you need to 'shrink' DVD content down to 4.3 Gb or so to fit on a single sided DVD then whilst there are many commercial packages available, the free DVD Shrink will do the job.
It's easy to use, free and it works. Highly recommended.
Get a copy from the author's site at http://www.dvdshrink.org/