Hi Rick, that worked... in nibabel, I don't reconstruct the header and then have nibabel set the bare minimum fields automatically (updated code pushed to github). On the downside, I lose the extended header (I imagine that is the file history from 3dinfo?) This isn't a dealbreaker, but just curious if there is a better way (where I can retain that history). Also, why is retaining the old extended header a problem?
Thanks!