BS EN 62071-1:2006 PDF

Scope: This part of IEC 62071 specifies the content, format and recording method of the data blocks containing video, audio, and associated data which form the helical records on 6,35 mm tape contained in cassettes as specified in SMPTE 307M. In addition, this standard specifies the content, format, and recording method for longitudinal cue and control tracks. One video channel and two independent audio channels are recorded in the digital format for 25 Mb/s VTRs and one video channel and four independent audio channels for 50 Mb/s VTRs. Each of these channels is designed to be capable of independent editing. The video channel records and reproduces a component television signal in the 525-line system with a frame frequency of 29,97 Hz (hereinafter referred to as the 525/60 system) and the 625-line system with a frame frequency of 25,00 Hz (hereinafter referred to as the 625/50 system). Prior to recording, the digital signal is be compressed to a DV-based 25 Mb/s bit stream with 4:1:1 sampling or a DV-based 50 Mb/s bit stream with 4:2:2 sampling. The standard includes the process required to decode the DV-based 25 Mb/s bit stream and 50 Mb/s bit stream into output video, audio, and data.

BS EN 62071-1:2006 Referenced Document

SMPTE 12M-1999 Television, Audio and Film - Time and Control Code
SMPTE 259M-1997 Television - 10-Bit 4:2:2 Component and 4fsc Composite Digital Signals - Serial Digital Interface

2006 BS EN 62071-1:2006 Helical-scan compressed digital video cassette system using 6, 35 mm magnetic tape - Format D-7 - VTR specifications
2001 BS EN 62071:2001 Helical-scan compressed digital video cassette recording system using 6,35mm magnetic tape - Forum D-7