.DOUBLE-THIN FORM, THICKNESS IS 3.8CM.SUPER-THIN CORE, BLUE BACK LIGHT DISC-DOOR.COMPATIBLE FULLY WITH MPEG4DVD/VCD/DVD-R/CD/MP3/MPEG4/CD-RW/JPEG/HDCD/WMA/KODAK.BUILT-IN DOLBY AC-3 DECODERS,2.1 CHANNEL OUTPUT..DIGITAL SCREEN.FULL TV SYSTEM:PAL/NTSC.USE EVERY-WHERE FOR LARGE WORKING VOLTAGE..EXCELLENT PICTURE CONTROL SYSTEM: FOR DIFFERENT DEMAND TO CHANGE.THE COLOR LIGHT SATURATION CONTRAST ETC