Canon IXUS 50 - Manual (Page 28)

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• Low Level Format
You should select the [Low Level Format] option if you suspect the
read/write speed of an SD card has dropped or if you wish to
completely erase its data. A low level format may require 2 to
3 minutes with some SD cards.
• When the camera is malfunctioning, a corrupted SD card might be
the cause. Reformatting the SD card may solve the problem.
• When a non-Canon brand SD card is malfunctioning, reformatting it
may solve the problem.
• SD cards formatted in other cameras, computers, or peripheral
devices may not operate correctly in this camera. When that
happens, reformat the SD card with this camera. If formatting in the
camera does not work properly, turn the camera off and re-insert the
SD card. Then turn the camera back on and format again.
5 Use the button to select [OK] and
press the FUNC./SET button.
• To perform a low level format, use the
button to select [Low Level Format] and
the
or button to add a check mark.
• To exit instead of formatting, select
[Cancel].
• If [Low Level Format] is selected, you can
stop formatting partway by pressing the
FUNC./SET button. You can still use the
SD card without problem even if
formatting was halted partway.
• The capacity of the SD card displayed after
formatting will be less than the rated
capacity of the SD card. This is not a
malfunction of the SD card or camera.