Audiovisual documents, such as films, radio and television programmes, are our common heritage and contain the primary records of the history of the 20th and 21st centuries. Unfortunately, that heritage is now endangered, because sound recordings and moving images can be deliberately destroyed or irretrievably lost as a result of neglect, decay and technological obsolescence. Through initiatives such as the World Day for Audiovisual Heritage and the
Memory of the World Programme, the work of preservation professionals is encouraged, in order to manage the range of technical, political, social, financial and other factors that threaten the safeguarding of our audiovisual heritage.
The General Conference of UNESCO approved the commemoration of a World Day for Audiovisual Heritage in 2005 as a mechanism to raise general awareness of the need to preserve and safeguard important audiovisual material for future generations, and for urgent measures to be taken to conserve this heritage and ensure it remains accessible to the public now, and to future generations.