33How to operate the MP3 playerMedia capable of playing MP3 includes CD-ROM, CD-R and CD-RW discs.Compared to CD-ROM media commonly used for music discs, CD-R discsare fragile in high temperature/high humidity environments and one sectionof the CD-R may become incapable of playback. Fingerprints or scratcheson the disc may prevent playback or cause skipping during playback.Sections of a CD-R may deteriorate if left inside a vehicle for long periods oftime. It is also recommended that CD-R discs be kept in a light-blockingcase because the discs are vulnerable to ultra-violet light.The format of discs to be used must be ISO9660 Level 1 or Level 2.Control items for this standard are as follows:• Maximum directory layers: 8 layers• Maximum characters for folder names/file names: 40 (including "." and 3letter file extension)• Allowable characters for folder names/file names: A~Z, 0~9, _ (underscore)• Number of files/folders possible on a single disc: 512• Total number of folders possible on a single disc: 255• Maximum folders this deck can recognize: 255**: A root directory is counted as one folder.F2Root directory (F1)F158Folder 2Folder 158Folder 159F255 Folder 255001.mp3002.mp3003.mp3004.txt005.mp3001.mp3002.mp3F159[Configuration example for CD supporting MP3]Number of files/folders possible on a singledisc is 512.Files aside from MP3 files (Example: 004.txt)also count as single files.MediaFormat of discs
