An apparatus for recording and/or reproducing a magneto-optical recording medium having a recording layer, a reproducing layer and an intermediate layer for magnetically coupling the recording layer and the reproducing layer in a stationary state, in which the magnetic coupling between the recording...http://www.google.ca/patents/US5579294?utm_source=gb-gplus-sharePatent US5579294 - Magneto-optical medium and recording and/or reproducing apparatus thereof
