Hi! If this rather old source (points to the old Koha website) is to be trusted then UKRMARC seems to be based on UNIMARC. http://library.lviv.ua/e-library/library_standarts/UkrMarc/index_eng.shtml I’d not be surprised though if there are some fields or ways of using a field that only exist in UKRMARC. You might have to remap some of the info to new fields in order to successfully import your records in Koha. Other people here knows the most efficient way to do that if that proves to be the case. Kind regards/Viktor Sarge Viktor Sarge Utvecklingsledare Regionbibliotek Halland Regionkontoret TFN: 035-17 98 73 MOBIL: E-POST: Viktor.Sarge@regionhalland.se<mailto:Viktor.Sarge@regionhalland.se> BESÖKSADRESS: Södra vägen 9, 30180 Halmstad www.regionhalland.se<http://www.regionhalland.se/> 16 maj 2014 kl. 14:03 skrev zolot <zolot@imath.kiev.ua<mailto:zolot@imath.kiev.ua>>: Hello all, "Koha 3.14. Manual (en)" considers "MARC", "MARC21" and "UNIMARC". What principle differences exist between these formats ? My database (more preciesely, isis-catalog, 100 000 records) has been created in accordance with Ukrainian standard "UKRMARC". Which of the indicated formats must be chosen for preferences ? What criteria need to be followed for the choice of marc-format ? Thank you, Gennady _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz<mailto:Koha@lists.katipo.co.nz> http://lists.katipo.co.nz/mailman/listinfo/koha