(1.1) This standard specifies the content of the data blocks which form the helical records as specified in ANSI/SMPTE 277M on 19-mm tape in cassettes as specified in SMPTE 226M. Part of this standard is the specification of the time and control code record, which forms the longitudinal index track, as specified in ANSI/SMPTE 277M. (1.2) Digital video and audio data derived from various image stan...