laptop's suer drive not working

i have a probook 4530s.bought it almost 2 years its super drive doesn't work.i used it rarely(only a no of times in 2 years)i detected this problem around 4,5 months never picks a dvd,however it sometimes picks a cd and sometimes refuses it.i did try a no of discs and re installled drive from device did not work.tell me what to do.its nearly impossible to get technical help from hp in Pakistan.and its also out of warranty.i dont know if the lens is weak or just clue what is wrong with it.