I have a Soyo KT333 Dragon Ultra mother board with built in PCI audio chip which is Cmedia 8738. This comes with a header attachement to the MB that gives me coaxial and optical-in and out SPDIF.
However I cannot get the SPDIF-in to work through either the optical or coaxial-in. The SPDIF-out works fine. In the mixer software, I select SPDIF-in and I tried two different software to try to record the audio coming in but so far no luck.