У вашего броузера проблема в совместимости с HTML5
Guide how to connect our laptop with Home media receiver thing..
This laptop supports 5.1 surround. The codec you have installed may not be set on 5.1 or 7.1 or the movie/game you are watching may not have 5.1 or 7.1 and that is why you wont have all the channels. I never had problems with K-Lite codec pack. When you install it you will be asked what kind of speakers you have or something like that and usually i click "same as input" so the movie/game if it has 5.1 it will reproduce 5.1 on your optical thingie!