A digital storage medium for use in data storage devices has two magnetic
layers where the respective easy axes of the magnetic moments in the two
layers are perpendicular to each other. Exchange coupling of the magnetic
moments in the magnetic layers produces a resultant magnetic moment that
is tilted out of the plane of the digital storage medium. The resultant
magnetic moment of the medium allows the use of either a ring head, a
single pole head, or a head that generates a field tilted at an angle for
write operations.