Sony A7RIII ILCE-7RM3A Operating Instructions Manual page 712

Example: When [Prioritize Rec. Media] is set to [Slot 1]
([Recording Mode]: [Simult. (
: Simultaneous recording is available.
: Recording is disabled.
: The same image cannot be recorded simultaneously.
(A): Recording is no longer possible on the memory card (due to lack of capacity, etc.).
(B): The memory card is removed.
(C): A recordable memory card is inserted.
Images that are not recorded simultaneously (for example: still images during [Simult. (
recorded to the other memory card when the memory card in use becomes full.
When the memory card in use becomes full while recording a movie, the movie continues to be recorded to the other
memory card until the recording in progress is finished.
When recording images separately to two memory cards in the RAW and JPEG formats:
When [Recording Mode] is set to [Sort(RAW/JPEG)] or [Sort(JPEG/RAW)], and [
JPEG]
The camera stops recording when either of the memory cards becomes full. When you remove the memory card that
has become full, the camera starts recording both in the RAW and JPEG formats to the other memory card.
When you replace the memory card that has become full with a recordable memory card, the camera starts recording
the two types of images separately with the selected setting again.
Example: When [Prioritize Rec. Media] is set to [Slot 1]
([Recording Mode]: [Sort(RAW/JPEG)])
: Images are sorted by the file format.
: Recording still images is disabled (movies can be recorded).
: Images cannot be sorted.
(A): Recording is no longer possible on the memory card (due to lack of capacity, etc.).
(B): The memory card is removed.
/ )])
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)]) continue to be
File Format] is set to [RAW &