Click the "i" button on your Oppo remote and it will tell you whether the source is dts or mlp as well as the sampling. I presume you are linked to a monitor as the default layer of a DVD-A without selecting could be anything depending on the disc. Also go back thru your setup menu to be sure which 5.1 defaults you have selected.
dts 5.1 fold down to stereo better than cd?
I have an Oppo BDP-95 connected to a 2 channel system. Does anyone have an opinion on whether the dts 5.1 DVD-A version of an album folded down to stereo sounds better than the cd version of the album? Thanks in advance.