Before you start flaming me - I know that D20 will NEVER have an intergrated ripper.
But I've been thinking. Windows Media Player will play DVD content, but not unless a compatible 3rd-party decoder is installed. I.e. it somehow uses PowerDVD or WinDVD to decrypt CSS without loading the program itself, and then gets on with playing/navigating.
Could DVD2One do the same - 'hijack' Power/Win DVD to decrypt content and then process it. After all Erwin has done some great things with these programs before!!!