Thank you for posting that you do not care much for DTS-HD MA, Jedi Temple34. I too am a Dolby fan. DTS is a waste of space on discs that should be used for video bitrate.

As to whether one should buy Star Wars on Blu-ray or not, I feel torn. I have no wish to fund Lucas' campaign to erase a part of cinema history; nontheless, I like to purchase copies of films that I own, and as I have watched HD versions of all six Star Wars films, morally I feel I should buy them. I do not mind having an HDTV version of a film when no HD version is yet available to buy, but once it is available, I usually buy it. This really is a dilemma for me.

@doubleofive

Your receiver is probably just playing the core of the Dolby TrueHD, which is essentially Dolby Digital. DTS works in the same way. If one has a receiver that can receive standard DTS, it will play the core of DTS HD mixes, which again is essentially standard DTS.