Content-enriched metadata in bibliographic records is considered helpful to library users in identifying and selecting library materials for their needs. The paper presents a study, using circulation data from a medium-sized academic library, of the effect of content-enriched records on library materials usage. The study also examines OPAC search transactions of circulated items to learn how enriched metadata is used. The findings show that enhanced records were overall associated with higher circulation rates and that keyword search was the most frequently used search option directly associated with circulation. Contents data can play a key role in discovery. Libraries should continue to provide and exploit content-enriched metadata. The combination of optimal library system data mining capability, postsearching evaluation, and OPAC display are crucial to achieve content-enriched access.