| 摘要 |
A magnetic recording and reproducing system is disclosed, which comprises recording a signal on a magnetic recording medium comprising a support having thereon a magnetic layer containing a ferromagnetic powder and a binder, by an inductive head and reproducing the signal by a magneto resistance head, wherein: the gap length of the inductive head is 0.3 mum or less, the maximum particle diameter of the ferromagnetic powder is 1/10 to ½ of the gap length of the inductive head, the minimum particle diameter of the ferromagnetic powder is 1/100 to 1/5 of the gap length of the inductive head, and the thickness of the magnetic layer is 1/10 to ½ of the gap length of the inductive head; or wherein the gap length of the inductive head is 0.3 mum or less, the average particle size of the ferromagnetic powder is 10 to 35 nm, the tabular ratio is 2 to 6, the squareness ratio of in-plane of the magnetic layer is 0.5 to 0.9 in the longitudinal direction, and 0.2 to 0.6 in the thickness direction, and the thickness of the magnetic layer is 0.01 to 0.2 mum.
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