Libraries are starting to use Linked Open Data (LOD) to provide their data (library data) for reuse and to enrich them. However, most initiatives are only available for textual resources, whereas non-textual resources stay aside. Firstly, this paper discusses the potential of library data to be published as LOD. Secondly, it focuses on the library data related to the management of audiovis-ual scientific materials in the TIB|AV-Portal. The use LOD Standards to support multilingual func-tionalities and data reuse is outlined. Future developments lead to the building of semantic applica-tions based on LOD Structures