A very common Google search related to playing DVD on Windows Media Player is “mpeg-2 decoder for media player”.
What many folks do not know is that with the addition of one simple plug-in, you can turn Microsoft’s popular Windows Media Player into a full-featured DVD player!
When combined with one of these DVD decoder (MPEG-2 decoder) plug-ins you will have new features such as full-screen video playback controls, DVD chapter listings, and integrated cover art…
There are DVD plug-ins for Windows Media Player on XP and Vista.
For more information you can read this informative article by the respected Microsoft MVP, Marc Liron, on choosing a DVD Player For Windows Media for your computer.
Leave a comment if you require any help.
Windows Media Player DVD Blog