Nikon D1 Manual page 102

Folders
The FOLDERS submenu contains the following options:
NEW: Create a new folder
D1 NC_D1: Select for playback all folders
created by the D1 (default)
DCF ALL: Select all folders conforming to
the Design Rule for Camera File
Systems (DCF) for playback.
nnn NC_D1: Select only the current folder
for playback (the number of the current folder is shown
to the left of this menu item).
NEW
Create a folder with the folder name NC_D1 and
a new folder number. Selecting NEW displays the
dialog shown at right, where you can select a folder
number by pressing the focus-area selector up or
down. Press the selector to the right or press the
button to create a new folder using the speci-
fied number; press the selector to the left or press
the button to exit without creating a new folder.
Photographs taken after a new folder is created will be stored in the new folder.
D1 NC_D1
Images in all folders created by the D1 will be displayed during playback.
Images in folders created by other cameras are not displayed.
DCF ALL
When this option is selected, images in all folders that conform to the
Design Rule for Camera File Systems can be viewed in playback mode.
nnn NC_D1 ( nnn is the number of the current folder)
Only images in the current folder will be displayed during playback. The
folder number of the current folder is shown to the left of the menu item.
Notes
Creating a new folder automatically resets the frame number display in the control
panel on top of the camera to 1.
When creating new folders with the NEW command, the D1 only uses the last folder
created to store all subsequent photographs. Thus, if you use the NEW option to
create in succession the three folders "101 NC_D1," "102 NC_D1," and "103 NC_D1,"
the D1 will store images in the folder "103 NC_D1."
Remember that the current folder option " nnn NC_D1" will display only the images in
the last folder created. To view or delete images in folders other than the current folder,
select "D1 NC_D1" or "DCF ALL" from the FOLDERS menu.
Playback: The Playback Menu
FOLDERS
NEW
D1
NC_D1
DCF
ALL
100
NC_D1
SET
NEW
100 NC_D1
SET
89