I hope this is not too dumb a question. I have a new HT setup that includes an Onkyo 595 receiver and a Pioneer C503 DVD player. Both decode DTS and I am running a 5.1 Polk speaker/subwoofer system. The question is regarding DTS-ES DVD's, which I understand are geared for a 6.1 speaker setup. Can I utilize the DTS capability on these DVD's for my 5.1 setup? I am hoping that there is a choice in the audio menu for either DTS or DTS-ES (as well as DD)? Is this correct or should I stay away from DVD's that say DTS-ES on them...opting only for "plain" DTS DVD's? Sorry if I sound new to HT, but I am! Thanks in advance for the help.