Thanks for the reply but not sure if I have made myself clear enough on the problem.
If I scan my 56000 tracks using WMP12 40000+ do not have the correct tag information. If I scan with itunes, Twonky, Winamp, etc they all show up fine. Checking online this seems to be a bug in WMP and is well documented. There does not really appear to be a reliable fix so my thought was that I use Twonky as my main UPnP server.
Once set up I can see how I can access the library in WMP12 (under Other Libraries). If I fire up Windows Media Center I do not get any music showing up. I am guessing I need to direct Windows Media Center to read the Twonky Library by default but I can only seem to read music from a shared drive (which then means I get 40000+ unknown artists and unknown albums).
So the question is how to set Windows Media Center (not WMP) up to automatically access the Twonky Library not a shared folder.
Can you assist?