2009 GMC Canyon Owner's Manual - Page 183

The player is able to read and play a maximum of 253 folders, 50 playlists, 20 sessions, and 949 files. Long file names, folder names, or playlist names may use more disc memory space than necessary. To conserve space on the disc, minimize the length of the file, folder, or playlist names. An MP3/WMA CD-R that was recorded using no file folders. The system can support up to 11 folders in depth, though, keep the depth of the folders to a minimum in order to keep down the complexity and confusion in trying to locate a particular folder during playback. If a CD contains more than the maximum of 253 folders, 50 playlists, 20 sessions, and 949 files, the player lets you access and navigate up to the maximum, but all items over the maximum are played. Empty Directory or Folder If a root directory or a folder exists somewhere in the file structure that contains only folders/subfolders and no compressed files directly beneath them, the player advances to the next folder in the file structure that contains compressed audio files. The empty folder does not display. No Folder When the CD contains only compressed files, the files are located under the root folder. The next and previous folder functions have no function on a CD that was recorded without folders or playlists. When displaying the name of the folder the radio displays ROOT. When the CD contains only playlists and compressed audio files, but no folders, all files are located under the root folder. The folder down and the folder up buttons search playlists (Px) first and then go to the root folder. When the radio displays the name of the folder, the radio displays ROOT. Root Directory The root directory is treated as a folder. If the root directory has compressed audio files, the directory displays as F1 ROOT. All files contained directly under the root directory are accessed prior to any root directory folders. However, playlists (Px) are always accessed before root folders or files. 3-55