Is anybody else embedding HTML mark-up code in MARC records [1]?  We're currently including an "<img>" tag in some MARC Holdings records in the 856z [2].   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

[1] http://en.wikipedia.org/wiki/HTML

[2] http://www.loc.gov/marc/holdings/hd856.html
      
# Michael Doran, Systems Librarian
# University of Texas at Arlington
# 817-272-5326 office
# 817-688-1926 mobile
# [log in to unmask]
# http://rocky.uta.edu/doran/