AliasMatch not displaying .wmv videos

I have a global content directory where everything seems to work except when directly linking to .wmv files. The media player opens up and I get this error: "The source filter for this file could not be loaded."

The videos play fine if they are linked in the web folders of each site, but they will not work when linked to the global content directory. All other image and .txt, .html, .php files work fine.

I have also added in .htaccess of content dir and to one of the video dir's:

AddType video/x-ms-wmv .wmv in .htaccess

But that didn't work. Any ideas?

Thanks!