John, check out Best Buy's website. They seem to have all the info you'd need. Its DTS, and that's the only spec I need to worry about (well, as long as it isn't used in a dialogue movie like "Firefly"!)
I've found the only drawback to the whole deal is fye uses Priority Mail and their tracking system. Anyone that has used USPS tracking before knows that it is non-existent and acts more like delivery confirmation. There have been a couple of occasions where the package arrived before the website registered the info on the package.