I haven't tried playing music on it yet, however, I haven't heard anything from it while playing DVDs once the tray closed. It will handle all the Dolby Digital & DTS types out there. The manual lists compatible disc types as: DVD-Video, DVD-Audio, SACD, CD, HDCD, Kodak Picture CD, DivX, CD-R/RW, DVD+-R/RW, DVD+R DL. It also handles NTSC and PAL video formats, and can be set to region 0, to handle any DVD you can find...

Audio output is listed as Analog out: stereo and 5.1; Digital out: coaxial and optical. The HDMI also carries audio, which would have to be digital (whatever format - DD or DTS - is on the disc). You seem to be able to pick up the audio at whatever output jack you choose to use, HDMI, digital or analog.

Check out the manual for complete specs HERE.

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