can't play some downloads with Media Player..because of the following coedec C00D109B

any suggestion on the fix.....?

Descriptions & possible causes & solutions are listed here: http://msmvps.com/chrisl/articles/14322.aspx

No simple answer. It might be you are lacking appropriate codecs; some good ones here: http://www.divx-digest.com/software/nimo_pack.html

Unsuported filetype or missing codec are the 2 most likely reasons!