Sony DPP-EX50 Operating Instructions Manual page 80

OPTION menu
Listing Order
Beep
* Factory settings
For the details on how to make settings,
see pages 60 and 63.
GB
80
You can select the
order of the images to
be displayed.
(Ascending*/
Descending)
You can select
whether or not
operation and
warning beeps
sound. (On*/Off).