Pentax WG-10 Operating Manual page 10

• If it is not used for a long time, the data on the card may become
unreadable. Be sure to regularly make a backup of important data on a
computer.
• Be sure to format SD Memory Cards that are unused or have been used
on another camera. Refer to "Formatting the Memory" (p.214).
• Please note that deleting data, or formatting the SD Memory Cards or the
built-in memory does not completely erase the original data. Deleted files
can sometimes be recovered using commercially available software. It is
user's responsibility to ensure the privacy of such data.
8