Recording/reproducing method of magneto-optical recording medium and drive system for magneto-optical recording medium

A recording/reproducing method for a magneto-optical recording medium having a magnetic lamination comprising a recording layer and an amplification layer, wherein

• upon recording, the recording medium is irradiated with a laser beam of constant intensity to apply a modulated recording magnetic field to the recording layer to thereby form recorded magnetic domain in the recording layer;
• and
• upon reproduction, the recording medium is first irradiated with a laser beam simultaneously with application of a modulated reproduction magnetic field to copy the recorded magnetic domain to the amplification layer to thereby form copied magnetic domain and enlarge the thus formed copied magnetic domain, and the copied magnetic domain is then read out, and an erase magnetic field of the direction opposite to said reproduction magnetic field is subsequently applied to the copied magnetic domain to thereby promote shrinkage and disappearance of said copied magnetic domain;
• and
• the recording and the reproduction are conducted such that:
• V.sub.R /V.sub.P >1
• wherein V.sub.R is linear velocity of the magneto-optical recording medium in relation to said recording magnetic field, and V.sub.p is linear velocity of the magneto-optical recording medium in relation to modulated magnetic field comprising said reproduction magnetic field and erase magnetic field.