Sony HTD-727SS home cinema system. Optical disc player type: DVD recorder, Disc types supported: CD, CD-R, CD-RW, DivX, DVD, DVD+R, DVD+RW, DVD-R/RW, JPEG, MP3. Audio output channels: 5.1, Audio decoders: Dolby Digital. Center speaker RMS power: 143 W. Satellite speakers RMS power: 4 W. Subwoofer RMS power: 285 W