Hi, I am running koha 3.0 on a local production server and have need to transfer a block of bibliographic data. i need a block from biblionumbers 2 - 100 from within a subset of 1 - 3000. The block has barcode numbers 30000 - 30131. So i proceeded to Tools-> Export Bibliographic and Holdings. From biblio number: 2 To biblio number: 100 I then proceed to import the items but eventually i get the information that the items are not being imported due to duplicate barcodes. I try to import the same marc file using bulkmarcimport.pl and get the same duplicate barcode notice. After running marcbreaker on the mrc file i notice the following: =LDR 00757nam a22002057a 4500 =008 090718t\\\\\\\\xxu|||||\||||\00|\0\eng\d =020 \\$a9780123694072 =080 \\$a528.8 =100 \\$aSchowengerdt Robert A. =245 \\$aRemote Sensing$bModel and Methods for image processing$cRobert A. Schowengerdt =250 \\$a3rd Edition =260 \\$aAmsterdam$bElsevier$c2007 =300 \\$a515p =650 \\$2Remote Sensing =650 \\$2Sensoriamento Remoto =942 \\$2udc$cBK =952 \\$p1$40$00$65288$91$bGIS_FM$10$o528.8$d2009-07-18$t1$8NFIC$71$2udc$yBK$aGIS_FM =952 \\$p2$40$00$65288$92$bGIS_FM$10$o528.8$d2009-07-18$t2$71$2udc$yBK$aGIS_FM =999 \\$c2$d2 =952 \\$w2009-07-18$p3$r2009-07-18$40$00$65288$93$bGIS_FM$10$o528.8$d2009-07-18$t3$71$2udc$yBK$aGIS_FM on 952, barcode p1 should be p30000, p2 should be p30001 and so on with the other bibligraphicals So i guess that the barcode is being substituted by biblionumber whenever i select a range of biblios to export. I don't recall having this problem whenever i exported everything without selecting a range. Is there any fix on this or any suggestion? Thanks