Samsung HT-BD7255. Optical disc player type: DVD player, Disc types supported: Blu-ray, CD-DA, CD-R, CD-RW, DVD+R, DVD+RW, DVD-R, DVD-RW. Video formats supported: AVCHD, DivX, DVD-Video, H.264, MPEG2, VC-1. RMS rated power: 800 W, Audio output channels: 5.1, Audio system: Dolby Digital Plus, Dolby TrueHD, Dolby Pro Logic II, DTS, DTS-HD. Supported radio bands: FM. Front speaker dimensions (WxDxH): 270 x 270 x 1115 mm, Center speaker dimensions (WxDxH): 358 x 44 x 68 mm, Subwoofer dimensions (WxDxH): 256 x 298 x 256 mm