Canon POWERSHOT G9 User Manual page 235

Appendix
1233
....
• Please note that formatting (initializing) an memory card erases
all data, including protected images.
• You are recommended to use memory cards that have been
formatted in your camera.
• The card supplied with the camera may be used without further
formatting.
• When the camera is malfunctioning, a corrupted memory card might
be the cause. Reformatting the memory card may solve the problem.
• When a non-Canon brand memory card is malfunctioning,
reformatting it may solve the problem.
• Memory cards formatted in other cameras, computers, or peripheral
devices may not operate correctly in this camera. When that
happens, reformat the memory card with this camera.
• If formatting in the camera does not work properly, turn the
camera off and re-insert the memory card. Then turn the
camera back on and format again.
• Be careful when transferring or disposing of a memory card.
Formatting or erasing the data on a memory card merely
changes the file management information on the card and does
not ensure that its contents are completely deleted. When
disposing of a memory card, take precautions, such as
physically destroying the card, to prevent personal information
leaks.