Ok so my home theater system is about 4-5 years old. All the speakers get plugged into the back of the dvd player via some mini version of an ethernet cord. Now when I watch movies, I either put the dvd in the xbox or I stream it off my laptop. The reason I don't use my dvd player for it on my 40" samsung hdtv is because the video quality is not so great on the tv (probably because dvd player can only connect to tv via component cables) whereas the xbox is through hdmi. So the video is awesome, it's just the sound...is there a way to do it so the sound goes out of the xbox and out of the speakers of my dvd player? Do I need an optical cable? Would that help? Or the xbox av pack or something? I'm so lost.....