ABSTRACT
As technology develops, new, improved formats are constantly being created, and most are incompatible with each other in terms of recording and playback equipment. Whereas film formats have been established for many years, new videotape formats are being constantly introduced, and this means the videotape library or archive must deal with new processes for storing and handling the material, as well as providing guidance for users. In terms of still images, 35 mm would generally be considered to be the minimum size required by most photograph libraries to provide adequate quality for commercial work. Reversal film was introduced in the 1960s to provide a single stage development process that is, avoiding the need to create a negative in order to make a print. Both still and moving images can be digitised and stored in various ways, such as on servers, on CDs or DVD-ROMs at high, medium, or low resolutions.
