okay quick nerds assemble! so my PS3...i figured out why my Assassin's Creed Liberation isn't working. I believe something maybe wrong with the blu ray. what further confirmed this is when I attempted to watch a blu ray movie. it was trying to load and just kept whirring about which has never happened...I mean the noise was hella loud. so I went to the interwebs and found that some people replaced or cleaned the lens. but some just did a simple system restore. ugh I really don't wanna do that. but if that is a simpler solution, I can do it. I also know how to take apart my PS3 and reassemble it cause the warranty with Sony ain't here. what do you guys think? feel free to visit my pm's so as to avoid the off topic warnings that may come. 
I suggest you just try to clean the lense first Kassummmii .
I admit , my experience with console is very old (Stopped at PS1) , but I recall often that was the issue . Just clean it and see how it goes . And yeah I remember that noise lol
Hum......well I dunno how your console look . But I remember our PS1 , it degraded so bad..in the end we had to put it on the Side....for it to work . If ya have no animal or clumsy idiot..ya can make it work that way 