[raff]

Install the 3ivx codec. It comes with an MP4 splitter and can handle 5.1 channel AAC. I'm a recent convert to BS Player so I can't tell you much about the filter options.

Playback will probably be crappy in BS Player too - I've made a bunch of MP4 files from various DVDs and none of them play back perfectly. With scenes which have a lot of motion I get choppy video in Media Player Classic and in BS Player. It may be related to how I make the MP4 files (Foobar 2000 to convert AC3 into an MP4 container and MP4UI to mux in the compressed AVI) but I can't find a better way right now. Still experimenting.