Denon DCD-50 Owner's Manual page 31

Contents Connections
Auto Play
Set whether to automatically start playback after inserting a disc.
1
When this unit in the power on, press and hold 1/3 for
5 seconds.
On: Playback starts automatically.
Off
Playback does not start automatically.
(Default):
0 Press and hold 1/3 to turn this setting ON or OFF.
0 When the setting is On, the display shows "Auto Play On".
0 When the setting is Off, the display shows "Auto Play Off".
0 Playback starts automatically when Auto Play is set to On and the power is turned
on when a disc is already inserted.
Front panel Display
Playback Settings
31
Rear panel
Tips
Remote Index
Appendix