. . and I'd expect a hideous outcry from creative people if that is true.

What I have definitely heard is that if you are working on your own content, say visuals or animation, and you pop in a "premium content" CD to listen to some music while you work, your own work will be degraded in unpredictable ways and may be completely ruined.

If you're a creative person it's probably best to keep "premium content" far away from the Vista machine you create content on.