2008 Toyota Prius Owners Manual - Page 280

3-3. Using the audio system NOTICE n Discs and adapters that cannot be used Do not use the following types of discs, 3 in. (8 cm) disc adapters or dual discs. Doing so may damage the player and render the disc insert/eject function unusable. l Discs that have a diameter that is not 4.7 in. (12 cm). l Low-quality and deformed discs. l Discs with a transparent or translucent recording area. l Discs that have tape, stickers or CD-R labels attached to them, or that have the label peeled off. 252 PRIUS_U_(L/O_0802)