The two databases (which are searchable simultaneously) contain Sigrid Krämer's collections about more than 34.000 writers and more than 16.000 owners of medieval manuscripts. Along with their names, personal data (if known), manuscript references and criticism are included. The database, which has never been published in print, is relevant for all disciplines (especially those with a focus on medieval studies) that deal with written tradition.

In addition to the 75.000 prints belonging to the basic content, VD16 comprises a supplement of more than 25.000 new titles. New titles are added continuously through acquisitions by the Bayerische Staatsbibliothek for the Collection of German Prints, as well as through data provided by national and foreign libraries.

The bibliographic project, Bibliography of Books Printed in the German Speaking Countries from 1601 to 1700 (VD17), intends to establish a German National Bibliography of the 17th century imprints. All German titles and all titles which have been printed or published in the former German speaking countries will be catalogued. Broadsheets are listed, musica practica (notations) and maps are excluded. VD 17 will be continuously enlarged and made more complete by contributions from associated libraries, the database currently contains more than 300.000 entries.