All Region Professional Karaoke DVD Player All Region, Professional Karaoke DVD Player AVI, MPEG4 playback, Built-in Dolby Digital 5.1(AC-3), HDCD audio Decoder for 3D virtual surround sound. Hi-Fi sound quality; 96kHz/24bits digital to analog converter YUV high luminance chromatism component output with progressive scan Dolby Digital / DTS Digital Out / Optical/Coaxial out