Toshiba SD1800 DVD Player ColorStream component-video output for ultimate DVD picture quality (when connected with an HD or HD-ready TV) Optical and coaxial digital-audio outputs pass Dolby Digital and DTS 5.1-channel surround sound (for use with compatible AV receiver) MP3-CD (CD-R, CD-RW) playback, QSound simulated surround sound Video Black Level Expansion and PLUGE for accurate, high-contrast pictures in darkened rooms Picture zoom for closer inspection of a given DVD