writing binary data to trailer

[banana123]

hi guys,
been trying to write binary data to the trailer tag ("Trailer:Trailer"), but it seems the exiftool saves it as str instead of bytes (b"b'\\x00\\x00\\.....'").
Is there any way to write bytes data to trailer?
thanks!! <3

[banana123]

SG Edit: duplicated posts merged

If you check the MPF tag page, you'll see that exiftool doesn't write any of those tags.

is there any way to write binary data to an existing exif tag?

[Phil Harvey]

What command were you using?  Generally, the best way to write binary data is directly from a file:

exiftool "-trailer<=binfile.dat" FILE

- Phil