Panasonic HX-DC2 Operating Instructions Manual page 24

≥ 4 GB or more Memory Cards that do not have the SDHC logo or 48 GB
or more Memory Cards that do not have the SDXC logo are not based
on SD Memory Card Specifications.
≥ The operation of Memory cards exceeding 64 GB cannot be
guaranteed.
≥ When the write-protect switch A on SD card is
locked, no recording, deletion or editing will be
possible on the card.
≥ Keep the Memory Card out of reach of children to
prevent swallowing.
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