RE: BluRay, it is dead already, manufactures already have the nextgen storage optical media, so whatever choice you make you are buying an antique!
The big thing is to get a slice of discrete 5.1 pie, which is priceless!
LOL, about my name:
You are very keen indeed, that is the reason I chose that moniker. Forums have so many anal-retentive specification & pointless trivial data Nazis. If I can bring a smile to someone's face by behaving like a complete idiot, I will consider my work to be have been done.