Yes, a format of the memory will erase ALL photos in one shot. I don't have a manual for this camera but from this site: http://www.ephotozine.com/article/Nikon-Coolpix-L14 It sounds like you go into the menu, choose setup and go to page 2. There should be an option to format on this page. Of course, before doing so I would backup all these photos to your computer.
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Yes, a format of the memory will erase ALL photos in one shot.
I don't have a manual for this camera but from this site:
http://www.ephotozine.com/article/Nikon-Coolpix-L14
It sounds like you go into the menu, choose setup and go to page 2.
There should be an option to format on this page.
Of course, before doing so I would backup all these photos to your computer.
If we delete some pictures from list. do it get save in thrash or bin? and can we see it while reading the memory card?