Microsoft’s Zune won’t play protected files purchased from Napster 2.0, Rhapsody, Yahoo! Unlimited, Movielink, iTunes, or any other online media service. Except emusic, of course, who sells good, old-fashioned unprotected MP3 files. Remember kids: when you purchase files with DRM, you’re putting your trust in corporations to continue supporting that file type. It’s a bad idea. Update: Yahoo is starting to get it and is selling one album with no DRM. Previously.