Nikon 900 - Manual (Page 57)

- 57 - Playback
Pressing the shutter button with YES highlighted causes the
current photograph to be deleted. Once the photograph has
been erased from memory, the following message will be
displayed.
DON E
Note: Once deleted, photographs cannot be recovered; be sure
to make copies of any photographs you wish to keep before
deleting them from memory (see “Connections” for information
on transferring photographs from memory to a computer).
To exit the delete dialog without deleting the currently selected
image, press the MENU button, or use the zoom switch to
highlight NO or
▲ BK and then press the shutter button.