Bose Lifestyle 38 Series IV Home Entertainment System - Black Built-in Dolby Digital and DTS decoding for surround sound from DVDs and other sources Bose Videostage 5 steering circuitry for surround sound from VHS, stereo, and mono sources Automatic video upconversion via HDMI with resolution up to 1080p Selectable progressive-scan mode for smoother video with HD-compatible TVs (via the component video output) uMusic intelligent playback system stores up to 200 hours of music