Pentax Optio 43WR Operating Manual page 88

Protect All Images/Sounds
You can protect all images/sounds from being accidentally deleted.
1
Enter the Playback mode.
2
Press the Z button twice.
The Protect All Images & Sounds screen will be displayed.
3
Select [Protect] with the four-way controller (2).
4
Press the OK button.
Select [Unprotect] in step 3 above to cancel the Protect setting on all of
the images/sounds.
Even protected images/sounds will be deleted when formatting the SD
Memory Card.
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