Pioneer DEH-P825R Operation Manual page 56

CD Player and Care
Disc Selection and Care
- Play only CDs bearing the Compact Disc
Digital Audio mark.
- Check all CDs before playing, and discard
cracked, scratched or warped discs.
- Wipe dirty or damp discs outward from the
center with a soft cloth.
- Avoid touching the recorded (iridescent)
surface when handling discs.
- Store discs in their cases when not in use.
Precaution:
* Keep discs out of direct sunlight and high
temperatures.
* Do not affix labels or apply chemicals to discs.
* Condensation may collect inside the player
when using the heater in cold weather,
interfering with playback. Turn it off for an
hour or so and wipe damp discs with a soft
cloth.
* Road shocks may interrupt CD playback.
COMPACT
DIGITAL AUDIO