Of all the features included with Windows Vista, Media Center is unique. The Media Center application is built into the Home Premium and Ultimate editions of Vista, which means it’s on at least three out of every four PCs sold at retail today. Its predecessor, Windows XP Media Center Edition 2005, was the default installation for most consumer PCs for more than two years as well. Together, that means Media Center is installed on as many as 200 million PCs worldwide.
But the Media Center feature set runs deep, offering high-end capabilities that appeal strongly to digital media enthusiasts. That enthusiasm has inspired some passionate communities, the largest of which is The Green Button, a community site with more than 112,000 registered members. (The Green Button was recently acquired by Microsoft, but its management and independent character have remained unchanged.) Down Under, the Australian Media Center Community boasts more than 11,000 members, and other large Media Center communities exist in Europe and Asia.