Chevrolet SUBURBAN - 2011 Owner's Manual page 237

The Radio with CD (MP3) and the
Radio with USB and CD (MP3),
have the capability of playing an
MP3 CD-R or CD-RW disc.
Radios that have the capability of
playing MP3s can play .mp3 or .wma
files that were recorded onto a
CD-R or CD-RW disc. The files can
be recorded with the following fixed
bit rates: 32 kbps, 40 kbps, 56 kbps,
64 kbps, 80 kbps, 96 kbps, 112 kbps,
128 kbps, 160 kbps, 192 kbps,
224 kbps, 256 kbps, and 320 kbps or
a variable bit rate.
The radio can play discs that
contain both uncompressed CD
audio and MP3 files. If both
formats are on the disc, the radio
reads all MP3 files first, then the
uncompressed CD audio files.
The radio supports:
Up to 50 folders.
Up to 8 folders in depth.
Up to 50 playlists.
Up to 255 files.
Playlists with an .m3u or .wpl
extension.
Files with an .mp3, .wma, or .cda
file extension.
The root directory is treated as a
folder. Files are stored in the root
directory when the disc or storage
device does not contain folders.
Files accessed from the root
directory of a CD display as
F1 ROOT.
Folders that do not contain files are
skipped, and the player advances to
the next folder that contains files.
Compressed audio files are
accessed in the following order:
Playlists (Px).
Files stored in the root directory.
Files stored in folders in the root
directory.
Tracks are played in the following
order:
Play begins from the first track in
the first playlist and continues
sequentially through all tracks in
each playlist. When the last
track of the last playlist has
played, play continues from the
first track of the first playlist.
Play begins from the first track in
the first folder and continues
sequentially through all tracks in
each folder. When the last track
of the last folder has played,
play continues from the first
track of the first folder.