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 
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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
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