Dell Precision M6300 User Manual page 138

NOTICE:
To avoid damaging the surface, do not wipe in a circular motion around
the disc.
2 With a soft, lint-free cloth, gently wipe the bottom of the disc (the
unlabeled side) in a straight line from the center to the outer edge of the
disc.
For stubborn dirt, try using water or a diluted solution of water and mild
soap. You can also purchase commercial products that clean discs and
provide some protection from dust, fingerprints, and scratches. Cleaning
products for CDs are also safe to use on DVDs.
138
Cleaning Your Computer