I would agree that there probably is no discrete on and off for this DVD player. I have an Integra DPC 5.2 DVD changer and an Integra DTR 6.2 receiver. The receiver remote has discrete on and off (standby) buttons which work as expected on the receiver. However, when the receiver remote "off" button won't do a thing to the DVD changer. The receiver remote "on" button turns the changer on and off, non-discrete style.

Both the play command and the open command (non-discrete open and close) will turn the changer on.