Thats the default setting, the DVD does the decoding thru HDMI. There are only 3 settings, just toggle among them and you will find one that lets the receiver decode the DD/DTS.
Or just simply read the manual!
matz,
i'm using a digital coax from dv600 to my avr. i did test it again a few minutes ago and when the dvd600's digital audio was set to Dolby or DTS, the receiver's audio setting (which is also set to detect feed signal in "AUTO") will change according to the dvd600's selection (toggling the AUDIO button-Dolby and DTS).
but when the dv600 setting is changed to Dolby>PCM or DTS>PCM, the receiver's audio setting will not change and just stayed on whatever it was set before, either Dolby or DTS. so when using the dvd's PCM out, the receiver sometimes is set to Dolby PLx while the dv600 is set to DTS.
btw, i am reading again the manual ang tried to digest what's written on it