> 
> > > When I look at the output of the above command, I see JFIFs in the 
> ASCII
> > > column. I don't see date/time strings.
> >
> > i'm not familar with the term JFIF
> 
> I get this:
> 
> 00000000 10 4a 46 49 46 00 01 01 00 00 01 |......JFIF......|
> 0001af60 ff e0 00 10 4a 46 49 46 00 01 01 00 |........JFIF....|
> 0002cde0 d9 ff d8 ff e0 00 10 4a 46 49 46 00 |...........JFIF.|
> 0002d030 01 ff d8 ff e0 00 10 4a 46 49 46 00 |...........JFIF.|
> 00033800 b2 7e 86 51 7f ff d9 ff d8 ff e0 00 |?....~.Q........|
> 
> Maybe it matters that I'm not really using a CF card image. I just
> took several jpgs, cat'd them together, and am working on that.


hmmmmm ... I would think the procedure would work with cat'd jpgs, but
i could be wrong. if the jpgs do not contain exif data, then there is no
hope, of course, for creating the optional CF_short -- at least not by the
method I give in my worksheet.

i am suprised that grep reported that it found matches within the first two 
lines that you've pasted, and i am suprised that hexdump -C is not showing 
ff d8 as the initial two bytes of the cat'd file.

what is the origin of your jpgs?

Mike

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