HONDA 2010 Insight - Manual (Page 256)

Small, irregular shaped discs Discs with scratches, dirty discs
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.
Recommended discs are printed
with the following logo.
Audio unit may not play the
following formats.
4. 5.
Protecting Your Discs
250
Fingerprints, scratches, etc.
3-inch (8-cm) CD Triangle Shape
Arrow Shape Can Shape