Yes, they are different, but I would think of them as different "copies" 
-- in the same way that a copy of a book with hand-written notes by Karl 
Marx is a different copy from another one in another library. "Edition" 
refers to a set of things that were published at the same time from the 
same (now virtual) plates. In codex times even those could vary some, 
but in modern times we can assume that they began life virtually 
identical. The scans should be considered individual and one should not 
assume that they are exact substitutes for each other in all ways.

What drives me nuts about the Google digitizations is that they often 
combine pages from different digitization "events" -- if a page from one 
event is blurry, they'll substitute a page from another one, and thus 
usually from a different library. This makes the Google digitized 
versions basically useless as preservation copies. Note that some 
Project Gutenberg editions, especially early ones, did not indicate 
which print edition they were based on, so again those have issues as 
sources for research.

kc

On 3/18/13 7:57 AM, David Fiander wrote:
> I might argue that different scans of the same print edition (or even of
> the same copy of an edition) are different electronic editions, since
> they may have different scanning errors, and almost definitely have
> different ocr texts.
>
> - David
>
> On Mar 18, 2013 10:51 AM, "Karen Coyle" <[email protected]
> <mailto:[email protected]>> wrote:
>
>
>
>     On 3/18/13 7:31 AM, Tom Morris wrote:
>
>      >
>      > I think Internet Archive "holdings" have a special status though.
>     Do you
>      > think it's worth trying to introduce specific handling to deal
>     with the
>      > case of three separate scans of the exact same edition?
>
>     Tom, in theory, editions are merged into a single OL record. I hadn't
>     thought about the management of multiple scans for a single edition, but
>     looking at the Work display it looks like there is only a place for one
>     scan per edition. I like your idea, but we'd have to think about how it
>     would display in that column format.
>
>     kc
>
>
>      >
>      > Tom
>      >
>
>     --
>     Karen Coyle
>     [email protected] <mailto:[email protected]> http://kcoyle.net
>     ph: 1-510-540-7596 <tel:1-510-540-7596>
>     m: 1-510-435-8234 <tel:1-510-435-8234>
>     skype: kcoylenet
>     _______________________________________________
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>     To unsubscribe from this mailing list, send email to
>     [email protected] <mailto:[email protected]>
>

-- 
Karen Coyle
[email protected] http://kcoyle.net
ph: 1-510-540-7596
m: 1-510-435-8234
skype: kcoylenet
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