tape t that travels at a predetermined speed the magnetic tape t is driven by a magnetic tape driving system not shown when recording is made an input video signal is first sent to a pre emphasis 31 and then to a rotational transformer 35 through an fm modulator 32 a recording equalizer 33 and a recording amplifier 34 the input video signal is transmitted further from the rotational transformer 35 to a magnetic head 20 and is recorded by the magnetic head 20 to the magnetic tape t which travels while keeping contact with the magnetic head 20 when reproduction is made the video signal recording on the magnetic tape t is first read by the magnetic head 20 and is then transmitted to the rotational transformer 35 further the video signal is passed through a reproduction pre amplifier 36 a reproduction equalizer 37 a limiter 38 an fm demodulator 39 a low pass filter 40 and a time base collector 41 from the rotational transformer 35 and is converted to an output video signal when high definition digital information was recorded by this vtr apparatus a signal to noise ratio s n of at least 40 db could be obtained the relative.