also under codecs and video software, here's an utterly amazing codec package which quite literally installs everything, ever under the sun to do with codecs.
divx 5.x, 4.x and 3.x, xvid, ogg, ac3, quicktime alternative, realplayer alternative (both allow the watching of .rm and .mov files etc in your standard player be it media player or what, also no stupid quicktime icons or realplayer jukeboxes loading up every time you start windows. it also has all the standard utilities that the movie lords love, like gspot and antifreeze etc.
this pack pretty much runs every form of video under the sun and all in perfect quality, it even comes with about 7 or 8 players including media player classic and my personal favourite, bsplayer. it's the last pack you'll ever use for watching or listening.
strangely enough, the site is in russian but the program is in perfect english.
ace mega codecs pack v6.01
you have to untick virus scan when you install it or the installation takes an hour and for some strange reason on my pc, my cousin's pc and my sister's pc we got 5 .dll errors on installation but otherwise total success yet my brother's pc installed it perfectly.. hmmm.