NOt all of them were made with HDCD. I don't really know how to tell the difference per se. I know that I own one that doesn't have the HDCD. I heard both and I preferred the non-HDCD one. But I can't say that would be the case with everyone.
On the front panel, there is a led for HDCD which I think it will light up when the CD is HDCD. I just tried a HDCD CD but it didn't light up. The user manual didn't mention this feature either.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.