Copy that :) changes seem reasonable and straight forward.

I was just
wondering ... is there a particular reason to keep any of the unused fields (see char data_type[10] or db_name[18] from http://nifti.nimh.nih.gov/pub/dist/src/n... for instance)? I would think it's easy enough to set these to default values as part of an output filter that saves a NIFTI-2 struct/image as a NIFTI-1 or Analyze 7.5 header stream to disk; in that case, maybe a total header size (incl. a null-extension) of 512 could be achieved, which might make mapping into a compound object (where actual image data is located in the same file on disk) a little more efficient, given that accessing data slice-by-slice on harddisks still makes it more likely to hit a block boundary for raw images with a 64x64 or 128x128 matrix...

/jochen