Well guys or gals, this is
only MY opinion, but I think WMP is the
BIGGEST Pile of
CRAP that you can use. It seems to me, and I have experianced this firsthand, WMP ALWAYS needs something like codex or there seems to Always be transfer problems from Limewire to WMP. It just doesn't have to be so difficult. Believe me, cuz I don't and never will ever use WMP again
I would suggest trying VLC Player. Has Codec built in and will play almost anything. If you're interested, here is the link. It is Highly Recommened here on the Forums.
VLC media player - Overview 