I have a Samsung AV-R710, and have a few questions: - I have an XBox 360 that I play games with, and stream music through. I've configured it as the "DVD" on the amplifier, and connected it using an optical cable. However, it always shows Dolby Digital, and therefore I can't use Dolby Pro Logic IIx (it states that in the manual) for music. How can I get the machine to be Dolby Digital for XBOX 360 games (which is presume is the best format for it) but Dolby Pro Logic IIx for XBOX 360 music? - what's the difference between NEO:6 and Dolby Pro Logic IIx? Are they competing standards, and if so which is better?