Thank you! It looks like the files are available as RDF/XML, Turtle, or N-triples files. Any examples or suggestions for reading any of these formats? The MARC Countries file is small, 31-79 kb. I assume a script that would read a small file like that would at least be a start for the LCNAF Thanks, Jean On Mon, 29 Sep 2014, Kyle Banerjee wrote: KB> After a quick search, http://id.loc.gov/download/ looks like the place to KB> go. I haven't downloaded it myself, but the file sizes make it look like KB> the right stuff. KB> KB> kyle KB> KB> On Mon, Sep 29, 2014 at 10:55 AM, Jean Roth <[log in to unmask]> wrote: KB> KB> > What is the link to the downloadable LCNAF data? -- Jean KB> > KB> > On Mon, 29 Sep 2014, Kyle Banerjee wrote: KB> > KB> > KB> IMO, API isn't the best tool for this job. My inclination would be to KB> > just KB> > KB> download the LCNAF data, normalize source and comparison data, and then KB> > KB> compare via hash. KB> > KB> KB> > KB> That will be easier to write, and you'll be able to do thousands of KB> > KB> comparisons per second. KB> > KB> KB> > KB> kyle KB> > KB>