"Old PC" is the keyword.. optical drives don't last to long even if they are used moderately... I have several very old CD drives that work but they were seldomly used. If you are handy with computer hardware you could try to revive it by opening the drive, cleaning the laser lens with a soft lintfree cloth and some alchohol, and slightly lubbing the laser carriage rails with a very light dab of vaseline or spray lubricant sprayed away from the drive so you can pick-up some of it with a cotton swab or similar object so you can wipe some on the rails. The original laser carriage rail lubbe can dry up and the carriage may not move freely therefore not be able to read the disk or write to it. This is what I have done several times on Optical drives but the chances of recovering normal functionallity are maybe half and half. But it may be worth trying if your CD drive is trying to load which is an indication that it may recover... In my experience when they fail for good, they don't respond at all... and your's seems to be responding even if for a second or two before it quits.