What do you want to set it to? Most apps that can play CDs have an option
under their Preferences that will let you set them as the default CD player.

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(speaking for myself and doing this in my free time)
See http://www.nwlink.com/~zachd/pss/pss.html for some helpful WMP info.
Following up to your post with the resolution is good netiquette.
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> does anyone know how to set the default media player that
> will start up when i put a cd in?