Canon Powershot SD890 IS DIGITAL ELPH User Manual page 215

You are recommended to use memory cards that have been
formatted in your camera.
• The memory 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 memory card
and does not ensure that its contents are completely deleted.
When disposing of a memory card, take precautions, such as
physically destroying the memory card, to prevent personal
information leaks.
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