— 5 —About CDsAbout GSM Hands Free UnitRefer to the instruction manual of GSMHands Free Unit KCA-HF521 (optionalaccessory), when connected, for theoperation method.The locations of the buttons to be pressed areshown below.Handling CDs• Don’t touch the recording surface of the CD.• CD-R and CD-RW are easier to damage thana normal music CD. Use a CD-R or a CD-RWafter reading the caution items on thepackage etc.• Don’t stick tape etc. on the CD.Also, don’t use a CD with tape stuck on it.When using a new CDIf the CD center hole or outside rim has burrs,use it after removing them with a ball pen etc.CD accessoriesDon’t use disc type accessories.CD cleaningClean from the center of the disc and moveoutward.Removing CDsWhen removing CDs from this unit pull themout horizontally.CDs that can’t be used• CDs that aren’t round can’t be used.• CDs with coloring on the recording surfaceor that are dirty can’t be used.• This unit can only play the CDs with.It may not correctly play disks which do not havethe mark.• A CD-R or CD-RW that hasn’t been finalizedcan’t be played. (For the finalization processrefer to your CD-R/CD-RW writing software,and your CD-R/CD-RW recorder instructionmanual.)CD storage• Don’t place them in direct sunlight (On theseat or dashboard etc.) and where thetemperature is high.• Store CDs in their cases.GSMTIDISP/MENUSRC¢4 FMAMGSMBurrsBurrs