By bring a master carrier and a slave medium into close contact with
uniform force when executing magnetic transfer by applying transfer
magnetic field in the state that the master carrier and slave medium is
in confronted close contact and received within a holder, inferiority of
transfer such as omission of signals is prevented and quality of transfer
signals is enhanced.The magnetic transfer apparatus executes magnetic
transfer by applying transfer magnetic field by means of a magnetic field
applying apparatus 5 after a master carrier 3, 4 bearing transfer
information and a slave medium 2 to be transferred are brought into
confronted close contact and received within a holder 10, wherein said
holder 10 has a substantially circular shape and in particular, the
circularity of holder is not less than 98%, wherein the flexural
rigidity=Ed.sup.3/12 determined by Young's modulus E and thickness d of
the holder is in the range of 0.1.about.30 kNm.sup.2 when the width of
close contact area between the slave medium and master carrier is defined
as 1 m, and wherein the practical thickness of the holder is not less
than 3 mm and not more than 15 mm.