BE NICE TO CYGNUS
I have heard quite a few movies in both DTS and DD. Quite frankly the quality the soundtrack and mixing is more important than what type of system is used. I've heard many soundtracks that are better on DD.
The real reason studios use DD over DTS on a DVD is the amount of disc space used for a DTS soundtrack. "Extras" are an important selling point with DVD's. A studio must sacrifice some of these extra features if they wish to add the DTS soundtrack. And as stated earlier, DTS is an option that the everyday consumer does not have. The studios MUST cater to the masses. Those of us that desire quality over quantity are in the minority. Which is why we pay more for what we want. I will gladly pay extra for a "director's cut" or a "special edition" to get the audio and video I'm looking for.