The original PS4 is notorious for constantly ejecting discs due to issues with the eject button. At the same time, all three ...
If there's already a DVD or game disc in your PS4's disk drive, press the small black button next to the PS4's power button to eject it beforehand. On your PS4's main menu, a new option will appear.
When it's time to switch games, a quick press of your Xbox One's eject button should be all it takes to remove a disc. The eject button found immediately to the right of the disc slot itself ...