Are there DVD Decoder requirements for Media Center and ATIs TV or DTV Tuner products?
For a list of supported DVD Decoders under Windows XP Media Center Edition, please refer to the Component and Technology Suppliers site, provided by Microsoft. Please note that a supported DVD Decoder should be preconfigured by your PC Manufacturer, and is required for proper operation of Media Center, including DVD playback, and watching or recording TV or DTV channels.