Canon CD-4070NW - Manual (Page 16)

Chapter 1. Safety Precautions
11
● When you write on the label surface of the disc, use a soft
felt-tipped pen. Do not use hard-tip pens, such as ball-point
pens.
● Do not store discs in dusty locations or locations where they
may be subject to cigarette smoke.
● Do not use or store discs in a location where a humidifier is in
operation.
● When you store a disc, insert it in its case, and store the disc in
a safe place.
● If the disc surface becomes dirty with fingerprints, wipe it clean
with a soft, dry cloth from the center of the disc outwards.
● When you have finished using a disc, eject and insert it in its
case, and store the disc in a safe place.