Panasonic LUMIX DC-GH5M2 Operating Instructions Manual page 120

4. Image Recording – [Double Card Slot Function]
Notes about relay recording
•
The following video cannot be continued to be recorded on another card:
– [Loop Recording (video)]
Notes about Backup Recording
•
We recommend using cards with the same Speed Class rating and capacity.
If the card Speed Class or capacity is insufficient when video recording, recording
to both cards stops.
•
Backup recording is not available with the following video. They can only be
recorded on a single card:
– [Loop Recording (video)]
•
When using the following combinations of cards, backup recording for videos,
6K/4K photos, and [Post-Focus] are not available:
– SD/SDHC memory card, and SDXC memory card
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