The still images are automatically assigned file numbers from 0001 to 9999 and stored in folders of 9999 images each. Each folder is numbered from 100 to 999 and recorded on the memory card.
Set the image file numbers so that they reset each time a new memory card is inserted, or so that they count up continuously.
Continuous
When the file numbers are set to CONTINUOUS, each image is assigned a different number, avoiding duplication of numbers. If a memory card already contains files, the lowest available number file will be assigned to the added file. This is convenient when you wish to manage your images on a PC. We recommend keeping the file numbers set to CONTINUOUS.

Reset
Each time you insert a new memory card, the file number resets to its default value (100-0001). If the memory card already contains files, the lowest available file number in the folder with the highest number will be assigned to the added file.