These work great under Linux (and if you are a folkie you really should use Linux) but they also have Windoze versions.

(you'll have to cut & pate the addresses because I'm too busy to fight with the blue clicky thingamabob right now)

Mplayer: http://www.mplayerhq.hu/design7/news.html

Vlc: http://www.videolan.org/vlc/

Democracy: http://www.getdemocracy.com/

There is also a non-evil version of RealPlayer called Helix: https://player.helixcommunity.org/

-Patrick