Repair The DVD room by Cleaning the Laser

This is a trick to fix the dvd room that cannot read the DVD or CD. The dvd room contain a laser lamp that active when managed to read any file of the DVD or CD, and if this laser dirty so cannot reading any file there.
And cleaning this laser will fix this. But for note you cannot do this action to repair the DVD room that its laser have beer broken. So watch the following video fo more detail.

Be carefull for following these steps because the laser is a sensitive electronic component.