This seems like a catch-22
You can only use Safari to stream HDCP-compliant video (i.e. Netflix, Vudu, Amazon), but those services do not support Safari if there are issues. Whenever I've had problems, I have been told to use Chrome by the various help desks at various times. The problem is that these videos will only play in SD when played in Chrome. Why not just stream any online video in HDCP-compliant encryption? Why not just output anything on the screen in HDCP-compliant encryption? Does anyone know if this would be considered anti-competitive behavior?
Mac Pro