Time shift without rebuilding metadata

[wazzup]

Hi.
Is there a way to apply time shift to CR2 files by only patching DateTime tags?
After all they are just a text strings in the metadata.
By 'patch' I mean changing DateTime tags in such a way that modified and original files will binary differs only in time values.
Because when I use

Code Select Expand

exiftool -AllDates+=1 test.cr2 exiftool also updates internal tags (such as StripOffsets) and moves preview image.
Is this possible at all?

[Phil Harvey]

No, sorry.

- Phil