Magnetic recording medium

摘要

A magnetic recording medium wherein thickness of the magnetic layer is less than the wavelength of projected light onto the surface of the magnetic recording medium having a multiplicity of magnetic-head tracking recesses formed thereon at predetermined intervals, and data tracks for recording thereon predetermined information provided between every two adjacent magnetic-head tracking recesses, each tracking recess and data track having a function to track a magnetic head in accordance with reflected light from the magnetic-head tracking recesses, the data tracks being provided at a track density greater than 1000 TPI and light transmittance of the magnetic recording medium is less than 5%.