[Koha] importing Library of Congress authority records

All, Has anyone tried importing Library of Congress authorities into Koha? We are considering purchasing the retrospective subject authorities, so while it would be a great many records (353,000 records), it wouldn't be the full database. -- Linda Culberson lculber@mdah.state.ms.us Archives and Records Services Division Ms. Dept. of Archives & History P. O. Box 571 Jackson, MS 39205-0571 Telephone: 601/576-6873 Fax: 601/576-6824