Abstract

A new MSR-ROM method for high-density recording, utilizes the difference in coercivity between “rough” and “smooth” are as in a disk. This method is advantageous for mass production and for the compatibility with erasable magneto-optical recording using MSR. A recording density more than 5 Gbit/inch² is expected in this method, the same as the double mask type MSR technique in rewritable disk. This paper describes the principle of MSR-ROM and the results of a readout experiment.

© 1998 Optical Society of America