A lot of the discussion so far seems to have missed the opportunity to
find out exactly what you are hoping to accomplish. (unless I missed
that post :) ). And to perhaps suggest alternative ways of doing that.
My first question is: What is the image an image of?
This is shortly followed by several more....
What is the name of the image (perhaps it is an ISBN)?
Where is the actual image going to be stored?
Does it actually make any sense to embed the URI of an image in the data?
What happens if the image name changes, or becomes unavailable?
What happens if the marc record is exported/consumed by another system?
(setting aside completey the issue of markup within markup discussed
elswhere in this thread)
If this is simply a way to get an image into the catalogue display, I
can think that there might be better ways.
For example Juice  which could allow you to dynamically load an
image (from a suitably maintained source) based on an identifier
somewhere within the page.
2009/6/21 Doran, Michael D <[log in to unmask]>:
> Is anybody else embedding HTML mark-up code in MARC records ? We're currently including an "<img>" tag in some MARC Holdings records in the 856z . I'm inclined to think that HTML mark-up does not belong anywhere in MARC records, but am looking for other opinions (preferably with the reasoning behind the opinions), both pro and con.
> I'm asking on code4lib as well as the voyager-l list in order to get a mix of ILS-specific and ILS-agnostic opinions (I'm not on any cataloging lists, or would probably ask there, too). I tried googling this topic, but couldn't find anything of consequence; so if I've missed something there, and you could point me to it, I'd be obliged.
> -- Michael
>  http://en.wikipedia.org/wiki/HTML
>  http://www.loc.gov/marc/holdings/hd856.html
> # Michael Doran, Systems Librarian
> # University of Texas at Arlington
> # 817-272-5326 office
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