I already have a pre-order of Pearl Harbor from Play. But a colleague just pointed out that Tescos are doing VAT free at the moment and you can order it for around £13. But then again, you have to add shipping, but the R2 still works out a couple of quid cheaper.. However, looking at Plays web site, the R1 is DTS but the R2 isn't. Is this really the case? Are there any other major differences between the 2 versions?