You all have been so helpful that I'm back for more. My batch load for Bibs and Authorities is working now, Yay! But, now I need to link them to each other. I'm running tests now. But, ultimately I hope to load ~500,000 bib records which link to ~300,000 authority records, so getting this piece working is kind of important. When I try to run the link_bibs_to_authorities script, I get the following: koha@Koha3:~/kohaclone$ export KOHA_CONF=/home/koha/koha-dev/etc/koha-conf.xml koha@Koha3:~/kohaclone$ export PERL5LIB=/home/koha/koha-dev koha@Koha3:~/kohaclone$ misc/link_bibs_to_authorities.pl Can't locate object method "new_from_bib_field" via package "C4::Heading" (perhaps you forgot to load "C4::Heading"?) at C4/Biblio.pm line 443. koha@Koha3:~/kohaclone$ I'm using Koha 3.0 It seems like I'm not the only newbie out here asking a lot of questions - thanks to all the experts for helping us out :-) -Andrea -- Andrea Schurr Web Technology Librarian and ILS Manager Lupton Library, Dept. 6456 University of Tennessee at Chattanooga Phone: 423-425-2668 Fax: 423-425-4775 Email: Andrea-Schurr@utc.eduÂ