Nikon D780 DSLR Camera (Body Only) - Manual (Page 578)

532 Menu Guide > D The Playback Menu
Copy pictures from one memory card to another when two
memory cards are inserted.
Copy Image(s)
G button
U D playback menu
Option Description
[ Select source ]
Choose the card from which pictures will be
copied.
[ Select image(s) ] Select pictures to be copied.
[ Select destination
folder ]
Select the destination folder on the remaining
card (the card not selected for [
Select source ]).
[ Copy image(s)? ] Copy the pictures.