Simple and powerful media player;
http://www.softpedia.com/get/Multimedia/Video/Video-Players/Media-Player-Classic-Home-Cinema.shtml (http://www.softpedia.com/get/Multimedia/Video/Video-Players/Media-Player-Classic-Home-Cinema.shtml)
That is the one I use. It comes with the K-lite codec package. That is a newer build though and I have now updated mine :)