Panasonic DVD-RV31K DVD Player, Black DVD/VCD/CD player with MP3, CD-R, and CD-RW playback Optical digital-audio output for Dolby Digital and DTS surround sound Features Panasonic Advanced Surround (VSS) system with Bass Plus, 1-touch cinema memory, and dialogue enhancer Discrete subwoofer output routes home theater sound to your subwoofer Also includes S-video output, component-video outputs, multibrand remote control, and front-panel shuttle dial