Xbox 360 Core Console [Old Version] All games are in high-definition -- supports 16:9 televisions, 720p, 1080i and 1080p resolutions with anti-aliasing Supports Memory Units starting at 64MB and 20GB hard drive Supports Xbox 360 HD-DVD player add-on for high-definition movie playback Backwards compatible with many original Xbox titles (requires Hard Drive) Multi-channel surround sound compatible (requires Component HD Cables)