Playing .wma files in OS X
Coming over from Windows and haVe a bunch of .wma files to convert so that work in iTunes?
A what use to be shareware program that has now gone free called Audion is a great tool to do so, and it should work on any .wma file that doesn't have any DRM on it.

Goto Tools -> Encode Item... and pick the files you want to convert and you'll find them magically appearing in your Music folder.
Since it has gone free now they even post a serial number you can use to get rid of the nags!
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