PRODUCT DESCRIPTION The High Definition AV Pack gives you all the power you need and want. It connects the Xbox console to most TVs with interlaced component video inputs, including High Definition-ready TVs that support 480i and either 480p, 720p or 1080i component video signals. Look for HDTV support on Xbox game packages. Movie playback is in 480i only. This pack also supports digital or surround sound audio receivers. Sound systems with Dolby Digital decoding and a fiber-optic cable are required to enable Dolby Digital sound. Sound systems with Dolby Pro Logic decoding are required to enable Dolby surround sound. (Additional cables and sound systems sold separately.) High Definition-ready TVs are required to enable high-definition features. .COM The Xbox High Definition AV Pack connects the Xbox console to most TVs with interlaced component video inputs, including High Definition-ready TVs that support 480i and either 480p, 720p, or 1080i component video signals. Look for HDTV support on Xbox game packages. Movie playback is in 480i only. This pack also supports digital or surround sound audio receivers. Sound systems with Dolby Digital decoding and a fiber-optic cable are required to enable Dolby Digital sound. Sound systems with Dolby Pro Logic decoding are required to enable Dolby surround sound. (Additional cables and sound systems sold separately.) High Definition-ready TVs are required to enable high-definition features.