Dell Latitude D430 (Mid 2007) - Manual (Page 70)

70 Cleaning Your Computer
Optical Disks
NOTICE: Always use compressed air to clean the lens in the optical drive, and follow the instructions that come
with the compressed-air product. Never touch the lens in the drive.
If you notice problems, such as skipping, with the playback quality of your optical disks, try cleaning
them.
1 Hold the disk by its outer edge. You can also touch the inside edge of the center hole.
NOTICE: To avoid damaging the surface, do not wipe in a circular motion around the disk.
2 With a soft, lint-free cloth, gently wipe the bottom of the disk (the unlabeled side) in a straight line
from the center to the outer edge of the disk.
For stubborn dirt, try using water or a diluted solution of water and mild soap. You can also purchase
commercial products that clean disks and provide some protection from dust, fingerprints, and
scratches. Cleaning products for CDs are also safe to use on DVDs.