Good news! I was ripping the wrong AC3 file! I managed to successfully get 6 separate 5.1 wavs!
Hey Hardcore, how are you going about editing wavs that have both dialogue and music in them? Eg, I've discovered that pretty much all the channels aren't exclusive to just dialogue or music. The centre wav will have say music and dialogue making it difficult to make a cut between certain scenes because you can't isolate the music and dialogue exclusively. The first example I came across was editing Jar Jar out of EP2 just after Obi and Anakin enter Padme's office in the first few scenes. His voice is on all tracks/channels, making it very hard to cut him out! Even on the music channel you can hear him very faintly in the background.
How are you getting around it?