GMC 2008 Sierra 1500 Pickup Owner's Manual page 238

To change from playback by artist to playback by
album, press the pushbutton located below the Sort By
label. From the sort screen, push one of the buttons
below the album button. Press the pushbutton below the
back label to return to the main music navigator
screen. Now the album name displays on the second
line between the arrows and songs from the current
album begins to play. Once all songs from that album
are played, the player moves to the next album in
alphabetic order on the CD-R or CD-RW and begin
playing MP3 files from that album.
To exit music navigator mode, press the pushbutton
below the Back label to return to normal MP3 playback.
BAND: Press this button to listen to the radio when
a CD is playing. The CD remains safely inside the radio
for future listening.
CD/AUX (CD/Auxiliary): Press this button to play
a CD when listening to the radio. The CD icon and a
message showing disc and/or track number displays
when a CD is in the player. Press this button again and
the system automatically searches for an auxiliary
input device such as a portable audio player. If a
portable audio player is not connected, "No Input Device
Found" displays.
3-102
Using an MP3
(Radio with CD and DVD Player)
MP3/WMA CD-R or CD-RW Disc
Compressed Audio or Mixed Mode Discs
The radio also plays discs that contain both
uncompressed CD audio (.CDA files) and MP3/WMA
files depending on which slot the disc is loaded into.
By default the radio reads only the uncompressed audio
(.CDA) and ignores the MP3/WMA files on the DVD
deck. On the CD deck, press the CAT (category) button
to toggle between compressed and uncompressed
audio format, the default being the uncompressed
format (.CDA).
MP3/WMA Format
If you burn your own MP3/WMA disc on a personal
computer:
•
Make sure the MP3/WMA files are recorded on a
CD-R or CD-RW disc.
•
Do not mix standard audio and MP3/WMA files on
one disc.
•
The CD player (lower slot) is able to read and play
a maximum combination of 512 files and folders.
The DVD player (upper slot) is able to read
255 folders, 15 playlists and 40 sessions.