Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 829)

Directory structure
Default
The server root folder is used for image storage. If you have created a subfolder in the
root folder by changing the [
Target folder ] setting, images are saved in that folder.
Camera
Automatically creates a folder structure matching that of the camera's (such as A/DCIM/
100EOSR6) in the server's root folder for image storage. If you have created a subfolder
in the root folder by changing the [
Target folder ] setting, a folder structure such as A/
DCIM/100EOSR6 is automatically created in that folder for image storage.
Overwrite same file
Disable
If there is already a file with the same name in the target folder on the FTP server, the
new file is saved with an extension consisting of an underscore and a number, as in
IMG_0003_1.JPG.
Enable
Any files with the same name in the target folder on the FTP server are overwritten by
transferred images.
Note
Even if [ Enable ] is selected when you resend images that could not be transferred
initially, existing images may not be overwritten in some cases.
If this happens, the new file is saved with an extension consisting of an underscore,
a letter, and a numeral, as in IMG_0003_a1.JPG.
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