Please Note! This product must be purchased in conjunction with a hardware item Windows XP Media Center Edition 2005 is one of the most fully featured versions of the Windows operating system you can get on a home PC. It's built on Windows XP, so it delivers the power, reliability, and security features you expect, plus specially enhanced capabilities for digital entertainment. Media Center is a single, unified, full-screen interface for entertainment—TV, Personal Video Recording (PVR), movies, music, photos, games, and radio—designed for remote control interaction from across the room.