Pour some rubbing alcohol on a soft cotton cloth. Clean the DVD with the saturated cloth, moving from the disc center to the outer edge. When finished cleaning the DVD with rubbing alcohol, let the DVD air dry.
Spray some furniture polish on a soft cotton cloth. Polish the DVD with the cloth, buffing from the center of the disc to the outer edge. When finished polishing, clean the DVD with rubbing alcohol as stated in Step 1.
Squirt some toothpaste on a soft cotton cloth. Rub the DVD with the cloth, moving from the disc center to the outer edge. The grain of the toothpaste will help wear away the scratches during this process. When finished, clean the DVD with rubbing alcohol as stated in Step 1.