Hans,
At the present time, the only MARC bulk download that is available
(from LC) is through our Cataloging Distribution Service.

    http://www.loc.gov/cds/products/product.php?productID=77


As you noted in your email, XML bulk downloads are available at 
id.loc.gov:
    http://id.loc.gov/authorities/


Search access of LCSH is available at 
	http://authorities.loc.gov
and, via Z39.50, at 
	lx2.loc.gov:210/SAF.

See the following document for more information about Z39.50 
access:
     http://www.loc.gov/z3950/lcserver.html

Please contact me directly if you have additional questions.
Larry


On Fri, 4 Mar 2011, Hans BKK wrote:

> I'd like to pre-load my ILS with the LoC Authority records for Subject
> headers before starting to catalog, for a more efficient workflow,
> compared to looking them up and downloading them one at a time.
> 
> When doing the latter, http://authorities.loc.gov/ clearly states they
> are available as MARC records, but looks like only one at a time. Also
> here: http://id.loc.gov/authorities/
> 
> http://id.loc.gov/download/ seems to be the place for bulk
> downloading, but the formats offered don't include MARC!
> 
> Their preferred format seems to be RDF-XML.
> 
> Is there a plug-in or some other way to batch convert this data into MARC?
> 
> As a side issue, I came across some mentions that MarcEdit will allow
> for LCSH term lookups using OCLC's Terminology Service. I haven't
> found anything along these lines in MarcEdit nor at the web site - was
> that just an experiment that never made it into code?
> 
> If none of the above pans out, any general suggestions on getting
> access to the LCSH authorities in Marc, if not in bulk then a quick
> way to get them one at a time:


------------------------------------------------------------
Larry E. Dixson                    Internet:    [log in to unmask]
Network Development and MARC
   Standards Office, LA327
Library of Congress                Telephone: (202) 707-5807
Washington, D.C.  20540-4402       Fax:       (202) 707-0115

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