i'm a total HT newbie, though i've been a longtime 2 ch audiophile. i'm getting my first HT system during the next week or two, so i'm getting some "software" in anticipation. i saw 2 versions of the Bee Gees One Night Only dvds at dvdplanet. Version 1: dolby 5.1 ONLY Version 2: it says that it is dolby 5.1 AND DTS 5.1 i don't understand. can the second version have BOTH dolby 5.1 and DTS 5.1? which is superior, dolby 5.1 or DTS 5.1? in any case, which one of those two dvds should i get? is "more" better in this case? that is, the choice of either dolby OR DTS in Version 2 is superior? or is there some arcane reason why the Version 1 with only dolby 5.1 is superior? my direct email is: firstname.lastname@example.org many thanks.