Yes, I just assume they know how to wire and program.
With my receiver set to Auto I let the DVD just play and it uses the default DD5.1, I get the "little light" and the four speakers would play. If I tried to manually set it to DD5.1 it would go to that setting, but no sound would play. The "little light" would flash, signifying some sort of error. Same thing for DTS. I tell the DVD to play DTS (since it's not the default), it sends the DTS signal, the "little light" for DTS comes on and the four speakers would play. If I manually set the receiver to DTS I get no output and the "little light" flashing signifying an error.
[This message has been edited by JT Clark (edited June 04, 2004).]