Video Decoder Problem Help Please...

when i play a file of mine on divx player it keeps saying this file contains a track in a unknown format {Code”") format. you may need to install a directshow decoder for this video format in order to play this file

Thannks

If it told you the code, look it up in one of these tables for the proper download
http://www.moviecodec.com/fourcc.html
http://www.moviecodec.com/audiotags.html

If not, use one of these tools to identify it
http://www.moviecodec.com/topics/61931p1.html