Sony DSC-RX100M3 - Manual (Page 185)

microSD memory card
(microSD memory card/microSDHC memory card/microSDXC memory card)
Memory Stick PRO Duo media and SD cards up to 64 GB have been tested and proven
to operate with this product.
Memory Stick Micro media up to 16 GB and microSD memory cards up to 64 GB have
been tested and proven to operate with this product.
When recording movies, the following memory cards are recommended:
(Mark2) (Memory Stick PRO Duo media (Mark2))
(Memory Stick XC-HG Duo media (Mark2))
(Memory Stick PRO-HG Duo media)
(Mark2) (Memory Stick Micro media (Mark2))
Class 4 SD card or faster, Class 4 microSD memory card or faster
When recording XAVC S format movies, use the following memory cards:
SDXC memory card with a capacity of at least 64 GB (Class 10 or faster)
UHS-I compatible SDXC memory card with a capacity of at least 64 GB
Memory Stick XC-HG Duo
SD cards also support UHS-I standard.
Note
When you use a memory card with this product for the first time, it is recommended that
you format the card using the product for stable performance of the memory card before
shooting.
Note that formatting permanently erases all data on the memory card, and is
unrecoverable. Save precious data on a computer, etc.
If you repeatedly shoot and delete images for a long time, fragmentation of data in a file in
the memory card may occur, and movie recording may be interrupted in the middle of
shooting. If this happens, save your images to a computer or other storage location, then
execute [Format].
Memory card formatted with a computer is not guaranteed to operate with the product.
Data read/write speeds differ depending on the combination of the memory card and the
equipment used.
We recommend backing up important data, such as to a hard disk of a computer.
Do not attach a label on the memory card itself nor on a memory card adaptor.
Do not touch the terminal section of the memory card with your hand or a metal object.
Do not strike, bend or drop the memory card.
Do not disassemble or modify the memory card.
Do not expose the memory card to water.
Do not leave the memory card within the reach of small children. They might accidentally
swallow it.
The memory card may be hot just after it has been used for a long time. Be careful when
you handle it.
Do not insert a memory card that does not fit the memory card slot. Doing so will cause a