I'm pleased to report that I just finished the 5.1 mix this afternoon. ;)

Been working almost non-stop the past few days to iron out all the little details, and it's definitely been worth it. Every manner of phase shift error that I could think of has been accounted for, the LFE levels are just right, and in a few places the imaging has been tweaked to reduce the concentration of sound in the center channel and spread it throughout the front. I'll be encoding and posting the final mix shortly.

Though the differences from the previous version may seem subtle, they represent a distinct improvement in quality and authenticity. I've tried to make this as close to the actual 70mm mix as I reasonably could, and even though there are undoubtedly still differences (not the least of which being the lack of true discrete channels), to my ear this really seems like the way the movie is supposed to sound. If I were in charge of mastering the audio of Star Wars for an official release, this is pretty much the way I would do it, and I hope you'll all enjoy hearing the result as much as I do.