TOYOTA 2010 Corolla - Manual (Page 224)

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3-2. Using the audio system
NOTICE
■ CDs and adapters that cannot be used
Do not use the following types of CDs, 3 in. (8 cm) CD adapters or Dual
Discs.
Doing so may damage the CD player and/or the CD insert/eject function.
● CDs that have a diameter that is not 4.7
in. (12 cm)
● Low-quality and deformed CDs
● CDs with a transparent or translucent
recording area
● CDs that have had tape, stickers or CD-
R labels attached to them, or that have
had the label peeled off