We used computer simulation to examine an measuring method for easy axis distribution of a recording medium. Remanent magnetization Mr with the field applied in-plane showed that in-plane Mr increases with saturation magnetization Ms when the easy axis distribution is not random in plane, though Mr scarcely changes with Ms when the easy axis distribution is random in plane. We found that easy axis distribution perpendicular to the film plane does not affect in-plane Mr with the field applied in plane. We also found that easy axis distribution perpendicular to the film plane can be estimated from distribution of easy axis in plane, tilted direction of easy axis from the film plane, and perpendicular component of Mr with the field applied out of plane. Good agreements were obtained between experimentally derived remanent magnetization of VTR and audio tapes with the field applied out of plane and Mr derived from computer simulation.
