Magnetische Aufzeichnungsträger zur magnetischen Aufzeichnung eines digitalen Videosignals

摘要

Disclosed is herein a method for magnetically recording digital video signals comprising the steps of: converting (5, 6) input digital video signals into data segmented into blocks each composed of a plurality of pixel data; compression-coding (8) the blocks of pixel data block-by-block; converting (11) the compression-coded data into channel-encoded data; and supplying the channel-encoded data to magnetic heads (13A, 13B) on a rotary drum (76) for recording by such heads on a magnetic recording medium (78) constituted by a nonmagnetic base having thereon a magnetic layer of at least one thin magnetic metal film which has an energy product of at least 75 G.cm.Oe, with the surface roughness of said magnetic recording medium being at most 0.003 mu m in center line average height Ra, and with the surface roughness of said magnetic recording medium being at most 0.04 mu m in ten point average height Rz.