Hi Richard, Richard Fernandez schrieb am 07.03.2015 > I've written a script that > will throw all my ISBNs against Worldcat's Classify, but that returns > MARCXML which, I guess, I would have to translate into MARC21. bulkmarcimport.pl has an option to import MARCXML. See http://perldoc.koha-community.org/misc/migration_tools/bulkmarcimport.html HTH, Mirko