Memory Card Settings; Format; File Number - Sony a9 Instruction Manual

Memory card settings

Format

When you use a memory card with this camera for the first time, we
recommend that you format the card using the camera for stable
performance of the memory card. Note that formatting permanently
erases all data on the memory card, and is unrecoverable. Save valuable
data on a computer, etc.
MENU  (Setup)  [Format]  desired memory card slot.
Note
• Formatting permanently erases all data including protected images and
registered settings (from M1 to M4) (page 170).
• The access lamp lights up during formatting. Do not remove the memory card
while the access lamp is lit up.
• Format the memory card on this camera. If you format the memory card on
the computer, the memory card may not be usable depending on the format
type.
• It may take a few minutes to complete formatting, depending on the memory
card.
• You cannot format the memory card if the remaining battery charge is less
than 1%.

File Number

Selects how to assign file numbers to still images.
MENU  (Setup)  [File Number]  desired setting.
Series: The product will assign numbers to files sequentially up to "9999"
without resetting.
Reset: The product resets numbers when a file is recorded in a new folder
and assigns numbers to files starting with "0001".
(When the recording folder contains a file, a number one higher than
the largest number is assigned.)
GB
179