Hi Anne, I don't believe there is a bulk biblio delete built into Koha. It certainly would be a good development though. Regards Susan McMillan Cataloguing and Systems Librarian| South Taranaki District Council 105-111 Albion St, Private Bag 902, Hawera 4610, NZ Phone: +64 6 278 0555 | www.southtaranaki.com   -----Original Message----- From: koha-bounces@lists.katipo.co.nz [mailto:koha-bounces@lists.katipo.co.nz] On Behalf Of library Sent: Friday, 27 January 2012 12:52 p.m. To: koha@lists.katipo.co.nz Subject: Re: [Koha] Biblio deletion When I try to import the file into the Batch Item Delete tool I get the following message. I'm not sure I have understood the function of the tool as it seems to be asking for a barcode not the biblio numbers that I am trying to load. Software error: Can't call method "as_usmarc" on an undefined value at /koha/lib/C4/Items.pm line 589. Regards Ann Murphy _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz http://lists.katipo.co.nz/mailman/listinfo/koha This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorised and may be illegal. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002. <p><b>CAN'T OPEN ATTACHMENTS?</b></p> The Council has upgraded to Microsoft office 2007 suite. This may mean you cannot open attachments if you have older versions of office. <a href="http://www.microsoft.com/downloads/details.aspx?familyid=941B3470-3AE9-4AEE-8F43-C6BB74CD1466&displaylang=en"> Click here to access Microsoft Office 2007's compatibility website.<a/>