Canon PowerShot A710 IS Advanced User's Manual page 69

Setting the Day or Time for Automatic Folder
.
Creation
2
Select a day for the [Auto
Create] option and a time in
the [Time] option
displays when the specified time
arrives. The symbol will cease to
display after the new folder is
created.
Up to 2000 images can be saved into one folder. A new folder
will automatically be created when you record more than that
number even if you are not creating new folders.
.
67