I'm still using 6.4 (thats what came with my PC). I downloaded and installed WMP 8 earlier this year, but after I installed it Windows would no longer load 
I would think this is some sort of copyright management. You've gotta believe with all the talk of Napster and other peer to peer file sharing that has gone on, Microsoft would lead the pack on finding a way to prevent you from playing music that you may not own. It is probably looking for a master of the recording to prove you own it, then it will allow you to play. I too have stayed with WMP 6.4. I found the latest version takes up too much of my resources and bogs down just playing CDs. I prefer WinAmp for MP3s and the old CD player to play CDs.Originally posted by TimL
Question:
Just downloaded WMP 9 this afternoon. I had some favorites from WMP 6.4 that will not play..It gives me the following message:
Windows Media Player cannot play this file. Connect to the Internet or insert the removable media on which the file is located, and then try to play the file again.
Any ideas on what this means?
Tim Lones