I typically create my DVDs from DirecTV Tivo input thru a Canopus ADVC-100 using iMovieHD and iDVD5. I'm sort of fine with the quality I get since most of the movies I do are either old TV shows from my youth (Thunderbirds are Go!) or just old movies, most of which are black and white. Although some I have to edit since they go beyond the 2 hour limit of regular DVDs. However, I'm in the process of designing a DVD Jukebox which will basically be a Mac and a bunch of hard drives loaded with my DVDs as "DVD" files. So I'm looking to see what are the best settings I can do to improve the quality since I won't have the DVD 4.7GB limit. I understand I need to get DVD Studio Pro if I want to produce in AC3 for surround sound, but I'm also curious if there are any special settings that the program can do to improve the video quality. And therefore worth the purchase versus just using iDVD5.