Sony a9 II Help Manual page 190

Folder Name: You can set how folder names are assigned.
[Standard Form]: Folders are named as "folder number + MSDCF."
Example: 100MSDCF
[Date Form]: Folders are named as "folder number + Y (the last digit of
the year)/MM/DD."
Example: 10090405 (Folder number: 100; date: 04/05/2019)
Hint
• The settings for [File Number] and [Set File Name] are applied to both Slot 1
and Slot 2.
• When [File Number] is set to [Series], file numbers will be assigned
sequentially across the memory cards in the slots even if you change the
[Prioritize Rec. Media] setting.
Note
• Only capital letters, numbers, and underscores can be used for
[Set File Name]. Underscores cannot be used for the first character.
• The three characters specified using [Set File Name] are only applied to files
recorded after the setting is made.
• When [Folder Name] is set to [Date Form], you cannot select the folder where
files are stored.
• If [Recording Mode] under [Rec. Media Settings] is set to a parameter other
than [Standard], only folders shared by both memory cards may be selectable.
If you cannot find a shared folder, you can create one using [New Folder].
• If [Recording Mode] under [Rec. Media Settings] is set to a parameter other
than [Standard], a folder numbered with the previous folder number on the
memory card +1 will be created on both memory cards.
• When you shoot images with [Recording Mode] under [Rec. Media Settings]
set to a parameter other than [Standard], a new folder may be automatically
created.
• A new folder may be automatically created if you shoot images using a
memory card that has been used in another device.
• Up to 4,000 images in total can be stored in one folder. When the folder
capacity is exceeded, a new folder may be automatically created.
GB
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