DVD-A signal to my stand-alone DAC; problems

Hi. I have moved my Denon 3910 universal player into my 2-channel audio room in order to incorporate its DVD-Audio & SACD capabilities. I have the player connected to my Musical Fidelity preamp with high-end analog cables, but I'd like to run the 3910's digital signal through my high-end stand-alone DAC. The 3910 offers optical "toslink" digital output, a RCA digital out, an HDMI digital out, and a digital output Denon terms "I-Link." I understand this type of output/cable is now used fairly commonly by other manufacturers under different names. Unfortunately my DAC only has digital optical and RCA inputs,and the Denon doesn't seem to send the DVD-A or SACD signal to the DAC through those connections. Is there some type of converter box or other way I can run the Denon's digital DVD-A & SACD signals (maybe using the "I-Link" cable)through my DAC? Many thanks!