Notes On Using Memory Stick Media; About Dcf File Names - Sony KD-30XS955, KD-32XS945, KD-34SX955, KD-36SX955 Operating Instructions Manual

Notes on Using Memory Stick Media

About DCF File
Names
Most Sony brand digital still and video cameras automatically record
still photo and movie files using DCF compliant directory and file
names.
If you selected the
Digital Camera Folders
you might want to have your digital camera's instruction manual
handy in order to check how files and directories are organized for
your specific model of digital camera.
DCF stands for "Design Rules for Camera File Systems," which are
specifications established by the Japan Electronic Industry
Development Association (JEIDA).
option, as described on page 74,
75