See also:

How to play back a CD
NOTE For type A audio, if a disc that the player cannot read has been loaded, the player will display the message “CHECK DISC”. ...

When selecting a CD to play (type B)
Disc select buttons Press a desired one of the disc select buttons the disc number indicator of which steadily lights up. The player will then start playback of the selected CD, beginning with ...

Random playback
To playback a track/file(s) at random, press the following button (random button) while the track/file is playing. *1: For type A, B and C audio, press the button for 0.5 second or longer. * ...