A dirty laser lens in an optical drive or device can cause skipping audio and video, and even cause the device to fail to read the disc. Even on devices where the electronics are inside, dust can enter and settle on the lens. If you are experiencing issues caused by a dirty lens, you can clean the disc with items you probably already have around your home. If you can't access the laser lens, kits are available to clean the lens for you.
Open the lid on the drive or device. The laser lens is a small gem mounted on a track near the spinning hub. It is usually red or blue.
Wet a cotton swab or microfiber cloth with rubbing alcohol.
Carefully wipe the lens with the wet swab or cloth. Do not press on the lens. Allow the alcohol to evaporate before turning on the device. It should only take a few seconds for it to disappear.