IEC 60857:1986

Applies to pre-recorded optical reflective videodisks compatible with 60 Hz-525 lines CCIR monochrome and colour coding M/NTSC systems, and defines those parameters that effect the interchangeability of the disk, excluding limitations of the programming material and source. Serves as a reference for manufacturers intending to make disks or players compatible with the optical system described. See also IEC 61106.