Interestingly, I get a bit-perfect capture using the following chain with my Late 2012 Mac Mini.
Runco LJR-II{TOSLINK output} =(TOSLINK->mini-TOSLINK cable)=> Mac Mini{mini-TOSLINK input}
(Hint: Make sure to set 44.1/16/disable in Audio MIDI Setup :-)
It only works with Cocko's Reaper (thanks for the tip!), but DTS Parser 2.0 breaks the file. VLC is able to read the DTS stream straight from the WAV. I wonder what I'm doing wrong...
I'm using the Strange Days DTS LD for testing.