Chevrolet 2006 Optra Owner's Manual page 178

As each CD is inserted, CDP will appear on the display
and as each CD is loading Filecheck will appear on
the display.
Once playback begins, the track and track number will
appear on the display.
If the ignition or radio is turned off with a CD in the
player, it will stay in the player. When a CD is in
the player and the ignition is turned on, the radio must
be turned on before the current CD will start playback.
When the ignition and radio are turned on, the CD
will start playing where it stopped, if it was the
last selected audio source.
The CD player can play the smaller 3 inch (8 cm) single
CDs with an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. There may be an increase
in skipping, difficulty in finding tracks, and/or difficulty in
loading and ejecting. If these problems occur, check
the bottom surface of the CD. If the surface of the CD is
damaged, such as cracked, broken, or scratched, the
CD will not play properly. If the surface of the CD
is soiled, see Care of Your CDs on page 3-75 for more
information.
3-68
If there is no apparent damage, try a known good CD.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a marking pen instead.
Notice: If you add any label to a CD, insert more
than one CD into the slot at a time, or attempt
to play scratched or damaged CDs, you could
damage the CD player. When using the CD player,
use only CDs in good condition without any
label, load one CD at a time, and keep the CD player
and the loading slot free of foreign materials,
liquids, and debris.
If an error appears on the display, see "CD Messages"
later in this section.
2 RPT (Repeat): Press this button to repeat the current
track. RPT will appear on the display. Press this
button again to turn off repeat play.
3 RDM (Random): Press this button to hear the tracks
in random, rather than sequential, order. RDM will
appear on the display.
To play tracks from all CDs loaded in a six-disc CD
player in random order, press this button until a
message that all discs are randomized is displayed.
Press the same button again to turn off random play.