Hello everyone...If anyone can help me out, I would greatly appreciate it...I really do not know how to explain all of this, but I will do my best...My friend has a Sony Home Theater System, a Sanyo DVD player, and a 27 inch Sony Wega Flatscreen TV. He hooked up everything, but did not have a digital optical cable, which I told him he needs to optimize DTS and Dolby Digital (yes, I already went into the dvd menu and set up dolby digital and dts)...I let him try out my optical cable so he could listen to the incredible difference it makes, but when I went to plug it in, I noticed a lot of things wrong with his connections. I am going to try to explain how he has things set up, and if someone can tell us what we are doing wrong, God Bless you.... anyway, he currently has the red, white and yellow connectors hooked into his dvd audio outs, and these connect to his vcr audio and video ins. He also has his orange coaxial cord plugged into his vcr through the line out and connecting to his dvd player audio in. He has nothing really hooked into his TV as far as audio and video cords go, and his receiver has nothing hooked into that either as far as video ins and outs go. He has room for optical video in, coaxial orange in, tapes, dvd, video 1 and 2, etc...I know some of these cords need to go into the Dvd audio ins right, and I know his coaxial cord is nowhere near where it needs to be...doesnt he have too many things plugged into his vcr?? I looked at all of this and knew something is definitely wrong, cause when i plugged in the optical cable from the receiver to the dvd, we could not get dts or dolby digital sound obviously....the only setting we could get to work was the cinema studio EX A or c.st.ex a for short...You should just hit the auto detection button on the remote to automatically detect the dts and dolby digital sounds, but all we have on the front display of the receiver is a pro logic option, so we know something is definitely not hooked up properly. The negative is that the instructions for the receiver state that the following cables are NOT supplied...1. white and red audio cord 2. white red and yellow audio and video cord 3. yellow and yellow video cord 4. monaural audio black and black cord A coaxial orange cord IS supplied, however, but the Sanyo DVd player does not have a jack for this cable to go into, it just has the optical, but the receiver has both. I know this is wayyyy too confusing, but it is hard to explain in words what the problems are....We really hope someone can try to explain to us the best way possible if we already have the right cables, if we need more, how to get the dts and dolby digital sounds properly emitted, and basically, what we did wrong. Again, thanks to anyone who is going to volunteer their time to try to explain this to us.