Matt Goyer has a post re: MCE library
performance improvements seen when running WMP11. I may have contributed to this confusion. Yes, the WMP11 library is wicked-fast compared to WMP10. Yes, it can search 2 million URGE tracks in an instant. Unfortunately MCE won’t see these benefits in Media Center unless you’re running Windows Vista. Apologies for any confusion.
Tom, I definitely hear your concerns and appreciate that you state up front you’re not the normal user. Most users will see significant performance improvements when using a keyboard and mouse (vs MCE). Not that many customers measure their media library in “terabytes”, as you do 😉 but you bring up a good point overall on the importance of making sure MCE and WMP11 work well together at final.