try VLC it works pretty well, also when getting codecs its best to only get the ones you need…serious. last year i had soo many headaches with codecs and trying to figure out why stuff was out of sync it drove me crazy.
best is just get vlc then get codecs for whatever decoding you need.
sometimes its hard to find out what codec you need so i would also suggest getting a app called Gspot. http://www.videolan.org/vlc/ http://www.headbands.com/gspot/
yes, fddshow is the shit, just reassuring you guys
Im using that, and some other stuff, like nimopack and i have no problems playing anything whatsoever. Tho vlc will probably also do the trick, and it even got mediaplayer skin if u need that secure comfy feeling