Laserdisc surround is very confusing compared to dvd. The reciever i have is a Yamaha HTR-5840. The laserdisc player i use is a Sony MDP-550. The laserdisc player has optical out. When i hook the optical to my reciever, my reciever displays PCM and only plays in stereo. I was wondering how to use the DTS and Dolby Digital features on laserdisc to actully work with my reciever. Is more hardware required? On some discs, it says it outputs dolby digital through the right analog channel. Does this also need some kind of decoder? And where does DTS output from, the optical? I would appreciate a full explination of this, for i am stumped and cannot find any resourses on the web.