It will not play my games or movies. play demo games

Chances are the blue ray eye is burnt out very common problem. When the disc enters the eye blinks to see there is a disc. Then the motor starts spinning the disc. The eye then figures out if it is a blue ray or a regular disc. If the eye is dirty or burnt out the disc will not spin. Try cleaning the eye first. You might have to tear apart to do if regular laser cleaner disc doesnt work. I have the 40 gig version and it is a paper weight for now. There are replacement eyes and motors for them for around $70. Only recommend this if you are familiar with electronics and are comfortable doing this. You will have to tear apart the system down to the blue ray drive. then tear apart the blue ray drive. There are plenty of you tube videos on how to do this. No you can not just change the whole blue ray drive because the drive is paired with that mother board.