But you shouldn't have to. Cut/Copy/Paste on a textbox context menu has been a standard feature in Windows for almost 15 years. If MS expects Silverlight LOB apps to compete with desktop apps or even plain HTML forms they need to include stuff like this
The point I was trying to make is that WMP12 will use WDS and its associated metadata writing features instead of its own homwgrown library/metadata system. Therefore the problem you are having specifically with WMP not writing metadata to files may go away.
And they probably won't bother fixing code in the current WMP that's going to go away in WMP12.
I was under the impression that WMP's library is being tossed in favor of using what is basically Windows Desktop Search with libraries being a way to organize specific sets of search locations instead of having to search for media files across all search