Abstract
The longitudinal magnetic recording process has been simulated by a super computer and compared with that of perpendicular magnetic recording. A curling incoherent magnetization reversal model and the statistical calculation of probable magnetization for magnetic particles in the interior of the magnetic layer of a medium have been introduced to the computer simulation. It has been theoretically confirmed by the computer simulation that the circular magnetization mode is formed in the medium at high desity recording and causes the recording demagnetizing loss, as we predicted qualitatively about twenty years ago.
