That is a very unusual problem indeed, I have never experienced anything like that. It sound as if its an issue with the player and not the reciever though. The reciever wouldn't even know the CD was being changed. My advice would simply be to call the Oppo service center and see if they have any advice for you. There was just a thread not long ago about how good their customer service is, so take advantage of that.
Worst case scenario is they'll ship you a new unit to replace your faulty one if indeed your unit is faulty!
