Any body have experience with OPPO BDP-80?

I love the 80. I don't use any of the audio processing. The HDMI outputs to the AV processor for hirez and the digital out goes to the DAC. Beautiful picture and stable transport for little money. You're not paying for features you don't use. When I want to spin a CD I use the MacMini or the Oppo. SACD can output PCM or DSD and the new hirez bluray audio formats are spectacular.

So the SACD goes to the receiver via HDMI and PCM and doesn't require anything special from the receiver?

Yes, the digital multi-channel can go over HDMI to a receiver capable of decoding it. The SACD can be sent as PCM or DSD. I think DSD sounds better. Your processor has to have the capability of decoding DSD via HDMI or will default to PCM. Either way the processor is doing the work of the Oppo. Or, you can use the analog outputs from the Oppo. In my case, my receiver is a better decoder. If your receiver or pre-pro handles True-HD and similar hirez signals, then the HDMI will carry all the digital outputs from Oppo. My Onkyo locks onto the signals without problems or dropouts. The Oppo is very reliable.