Did you put a different card into the D800, possibly one that had not been formatted in the D800. If so, the body will pickup with the last file numbers on a used card, I have been told.
Visit my Nikonians gallery.
Copyright © Nikonians 2000, 2013
All Rights Reserved
Nikonians®, NikoScope® and NikoniansAcademy™ are trademarks owned by Nikonians.org.
Nikon®, Nikonos® and Nikkor® are registered trademarks of Nikon Corporation.