Ellen,
I find that if I set the CD input to DTS in the INPUT CONFIG menu, and then play a DTS CD, everything works fine.
DTS is different on CDs than it is on DVDs. DTS CDs are designed to fool A/V gear into thinking they contain PCM data, like standard CDs do. This is why you can spin a DTS CD on
any CD player and the data will pass cleanly through the digital outs. But this is also why some A/V gear can have trouble recognizing what's coming off those CDs, and may need a little help.
Even if I switch to a surround sound CD, the 950 switches from DTS to PLII-C. It also switches back to DTS when I switch back to a DTS CD in my changer.
However, if I then switch to a stereo CD, the 950 does not switch to stereo unless I hit the STEREO button on the remote. I presume this is because there is no flag on the CD to tell the 950 what mode to switch to.
I understand what a DTS CD and a stereo CD are, but what do you mean by a "surround sound CD"?
Best,
Sanjay