Using an MP3MP3 CD-R DiscMP3 FormatIf you burn your own MP3 disc on a personal computer:• Make sure the MP3 files are recorded on a CD-R disc.• Do not mix standard audio and MP3 files on one disc.• Make sure playlists have a .mp3 or .wpl extension,other file extensions may not work.• Files can be recorded with a variety of fixed orvariable bit rates. Song title, artist name, and albumare available for display by the radio when recordedusing ID3 tags version 1 and 2.• Create a folder structure that makes it easy to findsongs while driving. Organize songs by albums usingone folder for each album. Each folder or albumshould contain 18 songs or less.• Make sure to finalize the disc when burning an MP3disc, using multiple sessions. It is usually better toburn the disc all at once.The player is able to read and play a maximum of99 folders and playlists. Long file names, folder names,or playlist names can use more disc memory spacethan necessary. To conserve space on the disc,minimize the length of the file, folder, or playlist names.You can also play an MP3 CD that was recorded usingno file folders. The system can support up to 11 foldersin depth, though, keep the depth of the folders to aminimum in order to keep down the complexity andconfusion in trying to locate a particular folder duringplayback. If a CD contains more than the maximum of99 folders and playlists the player can access andnavigate up to the maximum, but all items over themaximum are ignored.Root DirectoryThe root directory is treated as a folder. If the rootdirectory has compressed audio files, the directorydisplays as F1 ROOT. All files contained directlyunder the root directory are accessed prior to any rootdirectory folders. However, playlists (Px) are alwaysaccessed before root folders or files.Empty Directory or FolderIf a root directory or a folder exists somewhere in thefile structure that contains only folders/subfoldersand no compressed files directly beneath them, theplayer advances to the next folder in the file structurethat contains compressed audio files and the emptyfolder does not display.3-86
