Sony Playstation 3 (PS3) Console "repla" Questions

An original playstation3 game disk has been playing fine for year or two now , and suddenly isnt coming up on the home screen anymore? Also when put in , playstation makes a weird noise as if ejecting

When im playing online multiplayer with my friends i get kicked out... It says lost connection to the host but my internet signal strength is between 70 and 95 %.... I can not play one full game ...

my psp has a blue line troyugh the screen That is a dead pixel, you can not remove that, but you can replae the LCD.