How to clean the DVD player.

To clean this unit, wipe with a soft, dry cloth;

Use eyeglass cleaner to remove stubborn dirt from the LCD
Never use alcohol, paint thinner or benzine to clean this unit.

Maintenance of the lens;

Remove dust carefully with an air blower for camera lenses (optional).
Recommended product: Lens cleaner kit (SZZP1038C) or (RP-CL720PP). For model DMR-ES30 use LF-K123LCA1 or RP-CL720.(Available from Panasonic dealers.)
You cannot use a CD type lens cleaner.
Be careful not to touch the lens with your fingers.

To clean discs;

Wipe with a damp cloth and then wipe dry.

Disc handling precautions

Do not attach labels or stickers to discs (This may cause disc warping, rendering it unusable).
Do not write on the label side with a ball-point pen or other writing instrument.
Do not use record cleaning sprays, benzine, thinner, static electricity prevention liquids or any other solvent.
Do not use scratch-proof protectors or covers.
Do not drop stack, or impact discs. Do not place objects on them.
To protect discs from scratches and dirt, return them to their cases or cartridges when you are not using them.
Do not use the following discs:
– Discs with exposed adhesive from removed stickers or labels (rented discs etc).
– Discs that are badly warped or cracked.
– Irregularly shaped discs, such as heart shapes.

Observe the following points to ensure continued listening and viewing pleasure. Dust and dirt may adhere to the unit’s lens over time, possibly making it impossible to record or play discs. Use the lens cleaner about once every year, depending on frequency of use and the operating environment. Carefully read the lens cleaner’s instructions before use.

This answer is for the following models;

DVD-LS80; DVD-LS82; DVD-LS83; DVD-LS86DVD-LS; DVD-LS92, DMR-ES30, DMRES35, DMR-ES40, DMR-EH75, DMR-EZ48, DMR-EZ485, DMR-EZ47, DMR-EZ475, DMR-EH75,