not necessarily. the same thing was happening to my cd drive. my lower case was bent to allow dust to enter the optical drive, so i took it upon myself to find the problem. i took apart the optical drive, and cleaned the optical lens (dust cleaner, scotch tape works too, but be careful not to press/pull to hard as you may dislodge the mechanism making it so you have to buy a new optical drive). just be careful. what i did is not for the faint of heart.