If it burns yet nothing can read the burnt media...
Turn off the PC, Open the case, unplug the large gray wire from dvdwritter and the other one... unscrew the DVDRW, Open the window, Throw it as far as possible on the street, get in your car, get a new one, they cost 30$
Make sure you drive over the old one with the car to be sure it doesn't come back to life.
Sorry, I need to get home