A recording and reproducing apparatus includes: a recording section for
recording an information signal in a magnetic recording medium including
a magnetic layer including hexagonal ferrite; a reproducing section for
reproducing the information signal recorded in the magnetic recording
medium, the reproducing section including: a reproducing head for reading
the information signal from the magnetic recording medium; an equalizer
for equalizing the information signal read from the magnetic recording
medium, wherein a partial response of the information signal after
equalization by the equalizer satisfies a condition that
0.4.ltoreq.a<3.0, -0.6.ltoreq.b<2.0, -2.0