Graphic Convertor can do that for you.

tell application "GraphicConverter"
        open {alias "Drive:folder:blah.jpg"}
        set comment of window 1 to "Blah"
        save window 1
        close window 1
end tell

On Sunday, May 25, 2003, at 09:28  AM, Bill Bedford wrote:

> Can anyone suggest a way of automating the writing of comments fields
> in jpegs?
>
>
>
> Bill Bedford
>
> "Nothing is as important as model railways and even that isn't very
> important"
>
> -some wiseguy somewhere
>
--
Dave
====
"Money isn't the most important thing in the world, but it's way ahead
of whatever's in third."
--Dick Messenger