Hello. I have a studio-in-a-box, a Yamaha AW16G. It has a digital stereo IN and OUT pair of jacks which I have never used. This is mainly because although my MacBook Pro has a S/PDIF OUT function, it has no IN function. Lately I have been wondering if this technology can still be used. I have no other gear with the S/PDIF available anywhere, so connections would have to be made via some type of converter. Comment is invited.