Sony ILCA-99M2 - Manual (Page 206)

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.
Note
Formatting permanently erases all data including protected images and registered settings (from M1
to M4).
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%.
[199] Customizing the camera Memory card settings
File Number
Selects how to assign file numbers to recorded still images and MP4 movies.
Menu item details
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.)
Hint
The setting for [File Number] will be applied to both slot 1 and slot 2.
Even if you change the setting of the recording destination, the file numbers will be sequential across
the two memory cards in each slot by setting [File Number] to [Series].
MENU
→
(Setup)
→ [Format] → desired memory card slot.
1
MENU
→
(Setup)
→ [File Number] → desired setting.
1