Using an MP3 CDMP3 FormatThere are guidelines that must be met, when creatingan MP3 disc. If the guidelines are not met whenrecording a CD-R(W), the CD may not play. Theguidelines are:• Sampling rate: 16 kHz, 22.05 kHz, 24 kHz, 32 kHz,and 44.1 kHz.• Bit rates supported: 32, 40, 48, 56, 64, 80, 96, 112,128, 160, 192, 224, 256, and 320 kbps.• ID3 tag information is displayed by the radio if it isavailable. The radio supports ID3 tag informationv1.0, v1.1, or v2.0. The radio will display a filename,song name, artist name, album name, anddirectory name.• Maximum 32 characters, including spaces, in a fileor folder name.• Maximum number of folders is 100 with a maximumhierarchy of eight folders.• Create a folder structure that makes it easy to findsongs while driving. Organize songs by albumsusing one folder for each album. Each folderor album should contain 18 songs or less.• It is recommended that there is a maximum of192 files on a disc.• The files can be recorded on a CD-R or CD-RWwith a maximum capacity of 700MB.• DVD with MP3 are not playable on this system.Root DirectoryThe root directory will be treated as a folder. If the rootdirectory has compressed audio files, the directorywill be displayed as No Folder or ALL.Empty Directory or FolderIf a root directory or a folder exists somewhere in thefile structure that contains only folders/subfolders and nocompressed files directly beneath them, the player willadvance to the next folder in the file structure thatcontains compressed audio files and the empty folderwill not be displayed or numbered.No FolderWhen the CD contains only compressed files, the fileswill be located under the root folder. The next andprevious folder functions will have no function on a CDthat was recorded without folders or playlists. Whendisplaying the name of the folder the radio will displayNo Folder.4-67
