Abstract: A magnetic recording medium which is capable of improving durability and reliability while satisfactory electromagnetic conversion characteristics are being maintained, the magnetic recording medium incorporating a non-magnetic support member; and a magnetic layer formed on the non-magnetic support member and mainly composed of magnetic powder and a binder and having a two-layer structure composed of a first magnetic layer and a second magnetic layer, wherein Young's modulus of the first magnetic layer is 140×105 N/m2 to 160×105 N/m2 and Young's modulus of the second magnetic layer is 45×105 N/m2 to 50×105 N/m2. The specific surface area of the magnetic powder for use in the first magnetic layer is 42 m2/g to 46 m2/g and the specific surface area of the magnetic powder for use in the second magnetic layer is 32 m2/g to 35 m2/g.

Abstract: This invention intends to offer a magnetic recording medium which is so devised as to give a wide dynamic range and a flat response over whole audible frequencies.This invention attains the object by providing a magnetic recording medium which has two magnetic layers each composed mainly of ferromagnetic powder and a binder spread one over the other on one surface (front surface) of a non-magnetic substrate, wherein the ferromagnetic powder of either magnetic layer has a coercive force of 54.0-59.0 kA/m, and the coercive forces of the two magnetic layers differ by 3.2 kA/m or less. In addition, if a phase shift has to be minimized, the frictional coefficient of the back surface, and roughness (Ra.sup.f) of the magnetic surface with respect to that (Ra.sup.b) of the back surface or Ra.sup.f /Ra.sup.b should be adjusted properly.