Locate the lens on the disc drive.

Make sure that there is no dust on or near the player and area you are working on. Dust can get on the lens and scratch it while you are cleaning. It is very important that the lens is not damaged because the lens is used to read the discs.

Dip one end of a cotton swab in rubbing alcohol.

Lightly dab the swab on the lens. Be very gentle.

Let the lens dry before replacing the top plate of the DVD player.