That link just says what formats bluray can support. Why would creative or any other sound card manufacturer waste money implementing the extra two channels when there are only a handful of games that use 7.1? And there aren't that many movies that use 7.1 either. Go here http://www.blu-raystats.com/Stats/Stats.php?OrderBy=Title&Audio=7.1 There are only 347 movies listed as having a 7.1 sound track, and even if you look through that list you will see there are lots of films listed 3 or 4 times as it includes collector editions and 3d versions of the same movie. So that means there are roughly about 120 movies with 7.1 sound track. That's out of about 6000 listed on that site. Also 7.1 setups are really for large sitting rooms/movie rooms/ home cinemas. Generally, if you are using a PC with these setups then you are running HDMI into a receiver, you aren't going to be using a discrete soundcard.