Vivitar Vivicam 3555T User Manual page 37

Delete All: This option quickly erases all images on the
internal memory or memory card. (Which device is
erased depends on which storage device is selected -
see the "Storage Media" section for more information.)
Format: This option will do a complete erase and
reformat of the storage device, similar to formatting a
hard drive. Although Format takes longer than Delete All,
be sure to format your storage device occasionally to
ensure you have access to all the available memory.
Select either Delete All or Format, and press the Shutter
button. You will be asked to confirm your decision.
Select Yes (using the arrow keys) and press the Shutter
button to confirm. Press No to cancel and return to the
Setup menu.
As onboard memory may become fragmented over
time, you should periodically Format your onboard
memory to ensure you have access to all available
memory.
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