BEFORE DOING THIS make sure nothing else works because hard resting resets everything ALL YOUR APPS PICTURES, EVERYTHING. But this is how you do in if you can't do anything else. Start with this: 1: Press and hold the home button 2: Press and hold the volume up key 3: Press and hold the power button Then go down two (using the volume buttons to toggle up and down) Press the power button to select Then use the volume buttons to highlight the yes and press the power Wait When you get back to the menu, hold the power for a few seconds and wait.
This seems like a problem with the disc reader because the Blueray and game discs use different readers. You might want to look into it a little more because I am not sure, but try this PlayStation 3 Slim Blu-ray Disc Drive Replacement