title: Preferred, Obsolete Or In-Between? Developing A Criteria Catalogue For AV-Material 
creators: Merle Friedrich
abstract: The born-digital audio-visual (AV) holdings of the German National Library of Science and Technology are analyzed regarding the present file formats. The most frequent AV file formats are examined in terms of suitability as preservation format based on a catalogue of criteria. Furthermore their risk of obsolescence is evaluated using view paths. The examined file formats are not preferred as preservation formats, but they are not obsolete either.