A magnetic recording medium comprising: a support; an undercoating layer; and
a
thin ferromagnetic metal layer, in this order, wherein the undercoating layer comprises
a reaction product of a mixture comprising a compound represented by the following
formula (I):
wherein R represents an organic group having 1 to 40 carbon atoms which may
contain a functional group; X represents a hydrolyzable group; a is an integer
of 0 to 3; and a+b is 4, and an oligomer of a compound represented by the formula
(I) which comprises at least two siloxane bonds and has a viscosity of 4 to 100
mPasec, the mixture comprising at least a compound represented by the formula
(I) wherein b is 2 or greater.
