This is how I normally do a full disc

vbimport

#1
  1. Using DVD Decrypter, rip the entire disc

  2. Use dvd2one to encode the full disc to around 2.5Gb

  3. Remove the reencoded movie vobs and ifo. Find the total size of the remaining files and subtract this from 4475Mb. This will give you the total movie size

  4. Reencode the original vobs to the total movie size

  5. rename your new vobs and ifo to the original vobset number.

  6. Move the new vobs to your reencoded directory

  7. Use ifoupdate to change sector sizes etc for your new vobs

There you go. Full disc copy, using low encoding for menus, extras etc and a decent bitrate for the movie.