Method of copying magnetic recordings provided on a magnetizable medium having a greater coercive force before than after recording

摘要

A method of copying magnetic information from a master tape on a slave by contacting the tapes with each other in a magnetic field. In order to be able to make copies on high-coercive copy tapes, a master tape is used on which information can be recorded in a low-coercive condition and can be used for copying in a high-coercive condition.