A cd/dvd drive is a computer device that is capable of reading data from a disc and writing data unto that disc. There are various types of disc drives which include hard drives, floppy drives and optical disc drives. A computer can have either internal or external drives. Like other computer parts, computer drives can also have problems through continued use. There are many reasons why electronic equipment suddenly develop problems. To lengthen the lifespan of your disc drive and fix its problems, you can do few useful steps. Taking care of your computer and its components properly is the key to using it for a longer period.
You should first inspect the disc you're using. Check if the CD or DVD's data side has visible dirt or scratches. These could be the reason why the drive's laser cannot read the data properly. Clean it carefully using a soft, dry cotton cloth or a microfiber cloth. Also, clean the laser of the drive. The laser cannot operate well if it is blocked by dirt or dust inside. Spray out the drive using a can of compressed air.
Be certain that your computer's cd drive hasn't been unplugged from the computer. You can check inside by opening up the case, if the disc drive is internal. Plug back in the cable that goes from the drive's back to the motherboard of your computer, if it has been unplugged.
On the other hand, if your disc drive is external and plugs to the computer through USB or Firewire, check if the USB or Firewire ports are working. You can test these ports by plugging in other devices. If you find out that the ports don't work anymore, you'll have to go a repair shop so that these ports will be replaced.
Source: ezinearticles.com