What Bitt and I are trying to say is that the player has more than just two possible states. You need to think this through carefully.

You are asking for a way to tell the difference between "In standby" and "not in standby".

But the thing is, the player doesn't just have those two states. It has three states:
-Off
-Standby
-On

You need to know whether your goal is to detect all of these states, or if you only need to detect two states, and if so, then which two you want to detect between?