Refer to formats with special characteristics whose information content can only be accessed through the use of machines / digital equipment such as e-book, e-journals, electronic images, audiovisual materials, tape recording, etc.

Refer to any publication, document, or record including, but not limited to, the following: newspapers, magazines, books, photographs, drawings, maps, almanac, dictionary, atlas, encyclopedia, yearbook, magazine, etc.

Refer to electronic records and other content (MS Office files, PDFs, image, audio, or video files, etc.) that were originally created and/or stored in a digital environment (such as web servers, desktop computers, digital cameras, digital video recorders, etc.)