I've got an original Sony JE-520, and a large itunes collection. Much to my dismay, my own ripped CD tracks played via iTunes through Apple TV, shows SCMS and won't record. Well, there's a cheap software workaround for this – called Airfoil – which acts a layer between itunes and the apple tv, and strips the SCMS. I'm able to record *any* audio content digitally from the Mac to the Minidisc recorder. Thought that might be of interest to someone.