Tape

Tape In common audio terminology, a strip of thin plastic, coated with iron oxide or similar substance, that may be magnetized to record sounds. Through the 1950s tapes had an acetate base, and tended to become brittle with age and to break easily. More recent tapes have a polyester base, such as mylar; they do not grow brittle, though their elasticity may be a problem (better tapes are pretensilized to overcome this). The widely used iron oxide coating was improved upon by Dupont in the late…