16mm film
A now obsolete medium for the delivery of educational films, replaced firstly by videocassettes and now DVDs.
DVD Video is a device for playing back high quality digital video along with its accompanying soundtrack. DVDs have much greater capacity than standard CDs, which makes it possible for entire feature films to be contained on single discs. Interactive capabilities make it possible for users to access segments of content by selecting from on-screen menus. In a learning context, DVD Video is likely to be used as a simple video playback medium, but could also be configured as an interactive device.