SMPTE 249M-1996

This standard specifies the dimensions and locations of the video, audio, time code, and tracking-control records, as recorded by 1/2-in type M-2 helical-scan video tape recorders operating with video signals having a typical scanning structure of 525 lines, 59.94 fields/s, 2:1 interlace, and utilizing the video cassettes specified in ANSI/SMPTE 250M. This standard also specifies the records for two different audio recording modes – common audio mode and pulse code modulation (PCM) audio mode.