Panasonic Toughbook CF-F8EWAZZJM Reference Manual page 50

CD/DVD Drive
To clean discs
<For read-only discs>
Wipe discs with a dry, soft cloth from the center toward the edge.
If discs get very dirty, wipe with a moist, soft cloth from the center toward
the edge, then wipe again with a dry cloth to take up remaining moisture.
<For recordable/rewritable discs>
It is recommended to use the Panasonic disc cleaner.
Do not use a cloth.
How to hold a disc
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