GMC 2007 Yukon XL Owner's Manual page 307

File System and Naming
The song name that will be displayed will be the
song name that is contained in the ID3 tag.
If the song name is not present in the ID3 tag,
then the radio will display the file name without the
extension (such as .mp3) as the track name.
Track names longer than 32 characters or
four pages will be shortened. The display will not
show parts of words on the last page of text
and the extension of the filename will not be
displayed.
Preprogrammed Playlists
You can access preprogrammed playlists that
were created using WinAmp™, MusicMatch™, or
Real Jukebox™ software, however, you will
not have playlist editing capability using the radio.
These playlists will be treated as special folders
containing compressed audio song files.
Playing an MP3 (In Either the DVD
or CD Slot)
Insert a CD-R partway into either the top or
bottom slot, label side up. The player will pull it in,
and the CD-R should begin playing.
Depending on the format of the disc, a softkey
menu will appear and allow navigation of the disc.
The menu will read left to right as RDM
(Randomize song play order), a Folder icon with
left and right arrows (to move up or down
through available folders), a PL tag if the disc has
a Playlist available, and a Music Navigator tag.
If a Playlist tag is shown, toggling this key brings
up a Folder softkey only or the menu as
previously described.
If you turn off the ignition or radio with a CD-R in
the player it will stay in the player. When you
turn on the ignition or radio, the CD-R will start to
play where it stopped, if it was the last selected
audio source.
As each new track starts to play, the track number
and song title will appear on the display.
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