The IWF database records films, videos, CD ROMs and DVDs from the areas of education, pedagogics, and educational science that are offered by the "IWF Wissen und Medien gGmbH" (IWF knowledge and media, non-profit plc). The collation constitutes an educationally relevant extract from the information system offered by this provider, and it is regularly enhanced in order to include newly acquired media.
The usage of the media is subject to payment (purchase, rental). The "IWF Wissen und Medien gGmbH" is legally responsible for any distribution, respective conditions can be ascertained from the IWF via a web form displayed in the list of results. Many media can be viewed free of charge in preview quality, it is possible to choose from different player formats here. Depending on the respective medium, a different type of storage material than the one shown in the list of results my be available for distribution (e.g. CD ROM, DVD).
You can find further information here: http://www.iwf.de/IWF/Medien/Infothek/