Canon EOS R5, Advanced User'S Manual

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Conditions requiring card formatting
The card is new.
The card was formatted by a different camera or a computer.
The card is full of images or data.
A card-related error is displayed (
).
Low-level formatting
Perform low-level formatting if the card’s writing or reading speed seems slow or if you
want to totally erase the data on the card.
Since low-level formatting will format all recordable sectors on the card, the formatting
will take longer than normal formatting.
During low-level formatting, you can cancel formatting by selecting [
Cancel ]. Even in
this case, normal formatting will already be complete and you can use the card as usual.
Card file formats
CFexpress cards are exFAT formatted.
SD/SDHC cards will be formatted in FAT32. SDXC cards will be formatted in exFAT.
Individual movies recorded to exFAT-formatted cards are recorded as a single file
(without splitting them into multiple files) even if they exceed 4 GB, so the resulting
movie file will exceed 4 GB.
Caution
It may not be possible to use cards formatted with this camera in other cameras.
Also note that exFAT-formatted cards may not be recognized by some computer
operating systems or card readers.
Formatting or erasing data on a card does not completely erase the data. Be aware
of this when selling or discarding the card. When disposing of cards, take steps to
protect personal information if necessary, as by physically destroying cards.
Note
The card capacity displayed on the card format screen may be smaller than the
capacity indicated on the card.
This device incorporates exFAT technology licensed from Microsoft.
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