Sony PMW-F3K User Manual
(B) for the card in slot B
B for a HDD connected to slot B
Not Enough Capacity
There is not enough capacity for dividing a clip.
Change Media (A)
The memory card comes to the end of its service life. Make a
backup copy and replace the card with another one as soon as
possible. Recording/playback may not be performed properly
if you continue to use the card.
For details, refer to the operating instructions of the memory
Cause and measures