the frequency characteristics of the video signal to be recorded based on the full record time of the tape application_number US 97567797 A description referring to fig1 a record compensation apparatus according to the present invention includes a tape type discriminator 110 a decoder 120 a video signal processor 130 a record equalizer 140 and a record amplifier 150 tape type discriminator 110 detects the type of tape decoder 120 generates a decoded digital signal of a predetermined number of bits depending on the type of tape detected by tape type discriminator 110 video signal processor 130 processes a video signal record equalizer 140 equalizes the frequency components of the video signal output by video signal processor 130 based on the digital signal generated by decoder 120 record amplifier 150 changes an amplification factor of the video signal provided by record equalizer 140 based on the digital signal provided by decoder 120 and provides on amplified video signal to head 170 tape type discriminator 110 receives a supply reel sense signal and a take up reel sense signal and detects the type of tape for example it detects whether the loaded tape is type t 30 t 60 t 120 or t 180 decoder 120 decodes the detected type of tape and generates a 3 bit digital signal decoder 120 for example generates a digital signal 34 000 34 when the loaded tape is type t 30 and a digital signal 34 001 34 when the loaded tape is type t 60 record equalizer 140 compensates for the.