copyNikonISOtoEXIF
will copy the ISO setting of Nikon D70 JPEG pictures
from the Nikon MakerInfo to the EXIF tag ISOSpeedRatings.
So other applications will be able to read them.

 copyNikonISOtoEXIF 0.1, Copyright (C) 2005  Martin Herrmann
 copyNikonISOtoEXIF comes with ABSOLUTELY NO WARRANTY.
 This is free software, and you are welcome to redistribute
 it under certain conditions.