ummm I don't know about that...
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First, take the CD Rom out of the drive, examine it carefully for any deep scratches, warps or smudges. Make sure there are no glaring defects. Then, with a soft dry cloth, clean your CD from the inside to the outside ring. Do not go in a circular motion, go in a straight line from the inside out
Its best to use special paper that it designed to not scratch (usually tissue designed to clean the lens on eyeglasses or microscopes)
although CDs can handle a certain amount of scratches before they stop working, so its not a HUGE deal