European Register of Microform and Digital Masters
The European Register of Microform and Digital Masters (EROMM) is a consortium of libraries and library associations founded in 1994 for the international coordination of activities in the creation of digitized data and microforms . A freely available database created for this purpose is intended to improve access to these forms of protection or replacement and avoid unnecessary duplication of work. It also supports scientists and students in working with secondary forms.
EROMM currently has 13 institutions as members. The founding members are the Biblioteca Nacional (Lisbon), Bibliothèque nationale de France (Paris), British Library (London) and the Göttingen State and University Library. Further members are the Bibliothèque cantonale et universitaire (Lausanne-Dorigny), Bibliothèque Royale de Belgique / Koninklijke Bibliotheek van België (Brussels), ETH Library (Zurich), the Joint Library Network - Verbundzentrale (Göttingen), Kansalliskirjasto (Helsinki), Det Kongelige Bibliotek (Copenhagen), Koninklijke Bibliotheek (The Hague), Kungliga biblioteket (Stockholm) and Národní knihovna České republiky (Prague).
The EROMM data contains information about secondary forms based on a large number of different originals such as books, magazines, manuscripts, maps, posters, and inscriptions and notes. It does not contain primarily created ("born digitals") e-media such as electronic magazines , e-books and just as little information on non-textual objects such as images, photos or three-dimensional objects (artifacts, works of art). The number of reproductions that can be achieved through EROMM is currently over 20 million titles. By taking into account the large stocks of the Internet Archive , EROMM offers added value compared to other comparable services.
Queries in EROMM produce two sets of results, on the one hand as "EROMM Classic", on the other hand as "EROMM Web Search". They stand for two different databases which EROMM combines under one surface. EROMM Classic delivers a maximum of five data records from the entire result set of the EROMM database, which contain differentiated information about the respective objects. EROMM Web Search, on the other hand, is a search engine for digitized material. Compared to EROMM Classic, it also covers sources with less detailed bibliographic descriptions. The search in this data pool always delivers the full amount of results (in blocks of 10 hits each). The particular usefulness of the EROMM search compared to other catalogs and search engines lies in the deliberate restriction to reproductions of written material (secondary forms), which results in a high precision of the hits in corresponding inquiries in this regard; in addition, resources hidden on websites are made accessible in this way.
- Feather, John; Vitiello, Giuseppe: The European Register of Microform Masters: a new bibliographical tool. In: Journal of Librarianship and Information Science 23 (1991), December, no. 4, pp. 177-182. - .
- Schwartz, Werner: The European Register of Microform Masters (EROMM). In: LIBER Quarterly 5 (1995), pp. 103-110. 
- Schwartz, Werner: EROMM and old prints. In: Journal for Libraries and Bibliography: ZfBB 51 (2004), pp. 236–238.
- Schwartz, Werner: EROMM and the Registry of Digital Masters. In: LIBER Quarterly 18 (2008), April, no. 1, pp. 49-58.