there are numbers of media player(freeware) with its own in-built codec system like VLC, MPlayer, and Gom Player..

Gom is a new media player that i've found at Softpedia.. and I strongly recommend it to you

you can find it at http://www.softpedia.com/get/Multime...m-Player.shtml

it playbacks most of the differently encoded video formats and it's much faster than VLC... so give it a try.. if you have any questions about Gom you can post it here.. i come visit Gnutella Forums everyday..

@oh and one of the best things about Gom is that it has a "codec finder" system.. for codecs that cannot be distributed legally, it shows you where you can download the proper codec by popping up the "open source" codec website..