dcamp said:
			
		
	
	
		
		
			I have 5.1 channel output  on the back of my dvd player. I also have the corresponding inputs on my receiver. Are these used only for DVD-AUDIO,SACD only--or am I missing something to enhance the audio on my dvd movie playback?
		
		
	 
If you are talking about the 5.1 analog audio outs, then it can be used for both, DD, DVD-A, and SACD analog. The DVD will decode the DD track. 
Or, you could add coax cable, use the digital audio out and have your receiver decode the DD/DTS, if the receiver is capable.