Hopefully this will be my last question over the audio. On my Onkyo receiver, which has no HDMI, I can obviously only use optical. So in this case, does it make any sense to use DD TrueHD instead of DD+ since they both are mixed to a DTS signal on my receiver?? On Batman Begins I have an option for both. Does one mix better then the other, I know it sounds sill buy I don't know? I remember reading one guy stating that the TrueHD was more quiet, but I just want to know?