EN 61834-2:1998

FOREWORD
1 General
   1.1 Scope
   1.2 Normative reference
   1.3 Definitions, symbols and abbreviations
   1.4 Environment and test conditions
   1.5 Reference tape
   1.6 Calibration tape
2 Helical recordings
   2.1 Record location and dimensions
3 Programme track data arrangement
   3.1 Introduction
   3.2 Labelling convention
   3.3 Audio sector
   3.4 Video sector
   3.5 Subcode sector
4 Audio interface
5 Video interface
6 Audio signal processing
   6.1 Introduction
   6.2 Error correction code
   6.3 Randomization pattern
   6.4 Audio encoding
   6.5 Audio channel allocation
   6.6 Frame structure
   6.7 Shuffling method
   6.8 Audio auxiliary data (AAUX)
   6.9 Invalid recording
7 Video signal processing
   7.1 Introduction
   7.2 Error correction code
   7.3 Randomization pattern
   7.4 Video structure
   7.5 DCT processing
   7.6 Quantization
   7.7 Variable length coding (VLC)
   7.8 The arrangement of a compressed macro block
   7.9 The arrangement of a video segment
   7.10 Data-sync block and compressed macro block
   7.11 Video auxiliary data (VAUX)
   7.12 Invalid recording
8 Subcode signal processing
   8.1 Introduction
   8.2 Error correction codes
   8.3 Randomization pattern
   8.4 ID data
   8.5 Subcode data
   8.6 Rewrite of subcode sector
9 System data
   9.1 System data for APT = 000b and APM = 000b
   9.2 Pack structure
   9.3 Main area and optional area
   9.4 AAUX
   9.5 VAUX
   9.6 Subcode
   9.7 MIC
   9.8 Title, chapter, part and program
   9.9 Full recording system of horizontal lines
   9.10 Full recording system of teletext
   9.11 Character information system of consumer digital VCR
10 MIC (memory in cassette)
   10.1 Introduction
   10.2 MIC data structure
   10.3 Event
   10.4 Warning system for inconsistency
   10.5 MIC IC
11 Data structure for digital interface
   11.1 Introduction
   11.2 Data structure
   11.3 DIF sequence
   11.4 DIF block
   11.5 Frame period
   11.6 Playback speed
Annex A (normative) DCT-operation precision
Annex B (normative) Data through the digital interface
Annex C (informative) Manufacturers
Annex D (informative) Bibliography
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Specifies the content, format and recording method of the data blocks forming the helical records on the tape containing audio, video, and system data. It describes the specifications for the 525-line system with a frame frequency of 29,97 Hz and 625-line system with a frame frequency of 25,00 Hz. One video channel and two independent audio channels are recorded in the digital format.