A disc-shaped magnetic recording medium has magnetic tracks that are
arranged thereon substantially concentrically for writing and reading
magnetic information. Assuming that a saturation magnetic field in a
width direction extending in a radial direction from the center of the
disc-shaped magnetic recording medium is H.sub.R, and a saturation
magnetic field in a circumferential direction perpendicular to the radial
direction is H.sub.C, H.sub.R/H.sub.C is set to a value within a range of
0.5 to 0.95 in each of the magnetic tracks, and magnetization information
is recorded in the width direction of each magnetic track. In gap
portions between the magnetic tracks located adjacent to each other in
the radial direction, discrete portions for magnetically separating the
adjacent magnetic tracks are formed, respectively. With this
configuration, it is possible to realize recording and reproduction in
the magnetic track width direction.