Sounds like a hardware problem, as in the CD rom is broke or dirty somehow.
Have you installed anything recently since the problem has accured? Such as updates, programs, anything.
Try running a lens cleaner, cd rom cleaner
Send it in for a new CD-rom drive
Usually when a CD rom starts acting up, its because of a hardware problem. Especially when it was working before and just stops working all of a sudden. I doubt its the pins since its a laptop.