The Movielink online service backed by major studios doesn't support the Mac because the Mac doesn't support digital rights management (DRM), reports CNet. Cinema Now, Yahoo's Launch music service, PressPlay, MusicNet, Listen's Rhapsody and FullAudio don't support the Mac either. Apple is taking a big gamble on the MPEG-4 standard. This is particularly risky since Microsoft's proprietary WMP9 (Corona) includes DRM and already delivers superior quality. [Free registration required.]