Very interesting! I'll have to have a look and possibly re-evaluate my guide. I looked tirelessly for an alternative for mac3dec but found nothing.I even asked on the Creative Cow forums and the best they could suggest was to import an AC3 into Final Cut, unlink the channels and export each channel one by one into its own file. LOL.

Having said this, my current guide is quite friendly to beginners in that it doesn't require guesswork in choosing which VOB to demux (no preview in MacTheRipper), and uses only 2 programs rather than 3. Adding a52decX into my current guide may automate the splitting of the 6 channels, but it adds its own 2 steps (demuxing with Mpeg Streamclip and then splitting with a52decx). Splitting directly in Mpeg Streamclip is only a 4 step process, so it's essentially a whole other program for the sake of 2 steps less than my current guide. Is it really worth it? The act of downloading and installing a52decX can count as the 2 remaining steps themselves. Lol ;-)

Obviously the demuxing in MacTheRipper and then splitting with a52decX is ideal if you're only ripping the main movie, but I'm trying to make this guide as flexible, and cover as many scenarios, as possible - DVD menu videos, deleted scenes, documentaries etc - things people won't be able to identify in MacTheRipper without trial and error. I could add this as an option in my guide, but I fear it may overly complicate it. Thoughts?