Sony CX777ES to Onkyo DS575X - analog or digital outputs?

I am buying a Sony DVP CX777ES high-end mega-changer, with SACD and DVD capability. It has a 192 kHz 24 Bit Digital to Analog Converter (DAC) for the audio portion.


I am hooking it up to an older AV receiver, an Onkyo TX DS575x, whose DAC specs I don't know, it's about 5 years old. It has Dolby Digital and DTS, and accepts optical and coaxial inputs, as well as 5.1 analog inputs.


I know I have to use the analog outs for the SACD.


My question is, for CDs and DVDs, should I use the Sony's DAC's and go with the analog to the receiver, or should I use the digital output to the receiver?