Eldartford,
What would make this player illegal? I can't see how using the digital output from a computer sound card connected to the input of a universal player would cause any legal issues for anyone. Lots of high end CD players have digital inputs. Some that come to mind are Cary 306/200, Resolution Audio Opus 21, the previously mentioned Tri-Vista and many more. What would be the difference for a universal player? I think you are confusing this issue with the issue of "Digital Output" of hi-resolution digital.
Please correct me if I'm wrong....
TIC