IEC 60843-4 pdf download Helical-scan video tape cassette system using 8 mm magnetic tape (8 mm video) – Part 4: Video subcode (VSC) 1 General 1.1 Scope This part of lEC 60843 specifies a method of auxiliary data recording and playback withthe IEC 60843 8 mm video system.This part is applicable to both 525 line -60 field and625 line –...