METHOD OF AND APPARATUS FOR REPRODUCING AND/OR REPRODUCING A CURRENT DIGITAL VIDEO SIGNAL AND A HIGH DEFINITION DIGITAL VIDEO SIGNAL IN A COMMON TRACK FORMAT

摘要

A digital recording method, recording apparatus, reproducing apparatus, and recording / reproducing apparatus having a track format suitable for selectively recording or reproducing any one of two types of digital image signals including different amounts of information, the current digital image signals and HD In order to record or reproduce the digital video signal in a common track format, the current digital video signal is compressed into a specific amount of data, and the HD digital video signal is n (n is an integer greater than or equal to 2) of the data amount of the current digital video signal compressed. When compressing twice and recording the current digital video signal, time-division multiplexing of the compressed current digital video signal with a digital audio signal of m (m is an integer of 2 or more), and time-division multiplexed signal k at each rotation of the rotating drum (k is an integer of 2 or more) when recording by azimuth recording on k tracks by magnetic heads and recording an HD digital video signal Time-division multiplexes the compressed HD digital video signal with an n × m-channel digital audio signal and speeds up the running speed of the magnetic tape by n times as compared with the recording of the current digital audio signal. Compared to n × k magnetic heads, recording is performed by azimuth recording on n × k tracks.;By using such a digital magnetic recording method, recording apparatus, reproducing apparatus, and recording / reproducing apparatus, a common track format including recording areas of video signals and audio signals for both the current digital video signal and the HD digital video signal can be obtained. Can be used, and since the traveling speed of the magnetic tape is 1: n, the same track pitch can be suitably used.