Hi Phil,

I'm going to think there's no hope to do something with cleanest way...

But I'll continue to look for a solution...

I can notice if the tag exist in the MakerNotes you can edit it. right ? (I succeed apparently to modify the value of my reference file (with ColorHue tag existing)

So, may be in this case it is possible to copy MakerNotes as a binary block from a good file to a corrupted one, and after that set this new file with the values, when they exits, from corrupted file ? Is that possible to do and how ?

If the only thing I can't fix is the included thumbnail which match with the reference file, it's not insuperable as true CaptureNX can regenerate it, even if I don't understand why the thumbnail is in makernotes.

Thanks again, especially for troubles which are not generated by Exiftool

Nicolas