Nikon D300 User Manual page 76

For instance, some sports or wildlife shooters might like to
move backwards through a long sequence of images, starting
with the last image taken. They can then delete the images
that are not usable in the sequence and the camera will
immediately show the previous image for review. When they
reach the first image in the sequence, the entire series is clean
and ready to use.
I leave my camera set to Continue as before because it will
then use the direction I was scrolling to decide which image
to display after deleting one.
Why not use all the neat technology built into your camera?
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