I'm pretty much with Semi on this one.
I defer to the method of recording.
Stereo made into multi channel via DD PL2 or the like does use a 'faked' method for extracting info for the surround channels (although it does not a bad job).
However, if someone were to place 6 mics around a theatre and record the sounds at each location and then sell that as a dvd-a (or equivalent), you would think that is about the closest you could get to hearing a live session without attending.
It makes sense that each mic would record the surround back channel, surround left channel, centre, etc. specifically for the home audio gear in more of a true 6 speaker replay format. Sound never comes from just one direction as our brain perceives echoes and reflections. The point of dual ears (or eyes) is all about triangulation of the source.
Where was i going with this?
I digress.
