Chevrolet 2010 Colorado Owner's Manual page 202

When play enters a new folder, the display does not
automatically show the new folder name unless
you have chosen the folder mode as the default display.
See DISPL (display) later in this section for more
information. The new track name displays.
File System and Naming
The song name that displays is the song name that is
contained in the ID3 tag. If the song name is not present
in the ID3 tag, then the radio displays the file name
without the extension (such as .mp3) as the track name.
Track names longer than 32 characters or four pages
are shortened. Parts of words on the last page of
text and the extension of the filename does not display.
Preprogrammed Playlists
Preprogrammed playlists which were created by
WinAmp™, MusicMatch™, or Real Jukebox™ software
can be accessed, however, they cannot be edited.
These playlists are treated as special folders containing
compressed audio song files.
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Playing an MP3/WMA
Insert a CD partway into the slot, label side up.
The player pulls it in, and READING displays. The CD
should begin playing and the CD symbol displays.
If you want to insert a CD with the ignition off, first
press the Z button or the DISPL knob.
If the ignition or radio is turned off with a CD in the
player it stays in the player. When the ignition or radio
is turned on, the CD starts to play where it stopped, if it
was the last selected audio source.
As each new track starts to play, the track number
displays.
x
1 FLD (Previous Folder): Press this button to go to
the first track in the previous folder. Pressing this button
while in folder random mode takes you to the previous
folder and plays the tracks in random order in that folder.
w
2 FLD (Next Folder): Press this button to go to
the first track in the next folder. Pressing this button
while in folder random mode takes the CD to the next
folder and plays the tracks in random order in that folder.