Casio QV-4000 3 - Manual (Page 33)

CONNECTING TO EXTERNAL EQUIPMENT
E-141
Memory Card Data
Images recorded with this camera and other data is stored
on the memory card using DCF (Design rule for Camera File
system) protocol. DCF protocol is designed to make it easier
to exchange image and other data between digital cameras
and other devices.
DCF Protocol
DCF devices (digital cameras, printers, etc.) can exchange
images with each other. DCF protocol defines the format for
image files data and the directory structure for the memory
card, so images can be viewed using another manufacturer’s
DCF camera or printed on a DCF printer. In addition to sup-
port for the DCF protocol, your CASIO digital camera also
uses dates in image folder names and image file names,
which helps to make data management easier.