SMPTE 227M-1996

This standard specifies the content, format, and recording method of the data blocks forming the helical records on the tape containing video, audio, and associated data in 19-mm type D-1 television digital component recording. In addition, clause 6 of this document specifies the content, format, and recording method of the longitudinal record containing tracking information for the scanning head associated with the helical records. Track dimensions and locations are specified in SMPTE 224M.The standard applies to recorders operating in the 525-line television system with a frame frequency of 29.97 Hz nominal and in accord with ITU-R BT.601. One video channel and four independent audio channels are recorded. Audio channels operate in accord with ANSI S4.40 at a 48-kHz sampling frequency. Figure 1 shows a block diagram of the processes involved in the recorder.