Windows Media Player 12 is ONLY available for Windows 7 (sorry Vista and XP users), but with it's functionality, it may be worth the upgrade (if you haven't already). This video outlines a few of the simple tasks that WMP12 can perform in W7.
Designed by media lovers, for media lovers. Windows Media Player 12—available only in Windows 7—plays more music and video than ever!
Windows Media Player 12 has built-in support for many popular audio and video formats—including 3GP, AAC, AVCHD, MPEG-4, WMV, and WMA. It also supports most AVI, DivX, MOV, and Xvid files.
The new Play To feature streams music and video to other PCs running Windows 7 or compatible devices around the home. With Remote Media Streaming, you can enjoy music or videos on your home PC from the road.
The new Now Playing mode is a study in minimalism: It shows only the controls you need, so nothing comes between you and your music or video. A new taskbar thumbnail with playback controls makes previewing easier and fun.
Enjoy smarter DVD playback, 15-second song previews, Jump Lists for fast access to favorite media. And that's just for starters.
Note: Available only in Windows 7. Windows Media Player 12 comes as part of Windows 7 and is not available as a separate download.