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Visual works in which the image appears to be in motion; include motion pictures, video recordings, flip books, and some optical toys such as zoetropes

Nonprint materials, such as slides, transparencies, motion pictures, or filmstrips, that make use of sight and sound to convey information; refers especially to such materials when used for instruction

Works that record interviews conducted to preserve the recollections of persons whose experience or memories are representative or are of special historical or social significance

Discs, tapes, filaments, or other media on which sound has been recorded