@nicksteel,
If you're converting DVD9 to DVD5 (movie-only), try this:
DVD Decrypter
1. Mode>File
DVDShrink v 1.03
1. Source data > (select output from dvd decrypter)
2. Remove audio, except Engilsh
3. Remove subtitle, except English
4. Remove end credits (optional)
5. Copy files to output directory
DVD2one v 1.1.2
1. Select source (output from DVDShrink)
2. Select target file size (e.g. 4.38GB)
3. Select Audio, Ach English
4. Select subtitle, English
5. Encode
Test with WinDVD or a DVD player and burn

DVD2one has a better transcoder and compressor than DVDShrink
for now. DVD2one can't remove end credits as easily as DVDShrink.
Combine the two (DVDShrink + DVD2one), you get a great movie.
-black prince