Honda 2008 Ridgeline Owner's Manual page 167

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4. Small, irregular shaped discs
3-inch (8-cm) CD Triangle Shape
Can Shape Arrow Shape
Table Of Contents
5. Discs with scratches, dirty discs
Fingerprints, scratches, etc.
CD-R or CD-RW may not play due
to the recording conditions.
Scratches and fingerprints on the
discs may cause the sound to skip.
2008 Ridgeline
Protecting Your CDs
Recommended discs are printed
with the following logo.
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