EN 60856:1993 Pre-recorded optical reflective videodisk system "Laser vision" 50 Hz/625 lines - PAL
IEC 60844:1988 Pre-recorded capacitance grooveless videodisc system 50 Hz/625 lines - PAL, on type VHD.
IEC 60845:1988 Pre-recorded capacitance grooveless videodisc system 60 Hz/525 lines - NTSC, on type VHD.
EN 60856:1993 Pre-recorded optical reflective videodisk system "Laser vision" 50 Hz/625 lines - PAL
IEC 60844:1988 Pre-recorded capacitance grooveless videodisc system 50 Hz/625 lines - PAL, on type VHD.
IEC 60845:1988 Pre-recorded capacitance grooveless videodisc system 60 Hz/525 lines - NTSC, on type VHD.