Simple MARC 21 bibliographic frameworks for some common types of bibliographic material. Frameworks are used to define the structure of your MARC records and the behavior of the integrated MARC editor. You can change these at any time after installation. The frameworks in this optional default setting include: BKS Wydawnictwa zwarte CF CD-ROM, DVD-ROM, Zasoby online SR Kasety i płyty audio VR DVD, VHS AR Modele KT Materiały mieszane IR Segregatory SER Wydawnictwa ciągłe