1	Introduction	4.5.4	PSI's and the pointer_field
1.1	Scope	4.6	Features and services
1.2	Background	4.6.1	Introduction
2	An overview of the DTTB model	4.6.2	Audio compression types and language identification
2.1	The challenge	4.6.3	Program information
2.2	The ITU DTTB Model	4.6.4	Captioning
3	Source Coding and Compression	4.6.5	Closed captioning
3.1	Definitions	4.6.6	Program source and program identification
3.1.1	Source and channel coding	4.6.7	Conditional access identification
3.1.2	Source coding	4.6.8	Picture structure information
3.1.3	Progressive scanning	4.6.9	Colorimetry
3.1.4	Square pixels	4.6.10	Colour field identification
3.2	Benefits	4.6.11	Scene changes and clean-insertion points
3.3	Low bit rate video coding and service quality	4.6.12	Field/frame rate and film pull-down
3.4	Examples of video scanning standards	4.6.13	Pan and scan
3.5	Video compression and coding	4.6.14	Random entry into the compressed bit stream
3.5.1	Introduction	4.6.15	Local program insertion
3.5.2	Introduction to MPEG	4.6.16	Individual programme identification
3.5.3	Digital compression techniques	4.6.17	Other channel information
3.5.4	Inter-frame prediction coding and motion compensation	5	The Physical Layer - Channel Coding and Modulation
3.5.5	Intra-frame coding	5.1	Introduction
3.5.6	Discrete cosine transform (DCT) coding	5.2	Spectral efficiency
3.5.7	Coefficient quantization	5.3	Modulation techniques
3.5.8	Run length coding	5.3.1	General considerations
3.5.9	Variable length coding	5.3.2	Single-carrier modulation (SCM)
3.5.10	MPEG video encoder	5.3.2.1	8-VSB modulation
3.5.11	I,B, & P-frames	5.3.3	Multi-carrier modulation (MCM)
3.5.12	The MPEG-2 coding structure	5.3.3.1	Orthogonal Frequency Division Multiplexing (OFDM)
3.5.13	Packetized elementary stream	5.3.3.2	Band Segmented Transmission Orthogonal Frequency Division Multiplexing (BST-OFDM)
3.5.14	Actual systems	5.4	Channel coding (error correction coding)
3.5.15	Error protection	5.5	Comparisons of early implementation of single and multi-carrier systems
3.6	MPEG-2 video coding	5.5.1	Impulse interference
3.6.1	Video bit stream	5.5.2	Multi-path distortion
3.7	Audio compression and coding	5.5.3	Co-channel interference from analogue TV
3.7.1	Introduction	5.5.4	Peak and average power ratio issues
3.7.2	Characteristics of a DTTB audio system	5.6	Coverage issues
3.7.3	Overview of the DTTB audio system	5.6.1	Hierarchical transmission
3.7.4	Overview and basics of audio compression	5.6.2	Multi-transmitter systems
3.8	The ISO/IEC IS 13818-3 (MPEG-2) Layer II System	6	System Overview
3.9	The ATSC AC-3 System	6.1	ATSC System
3.10	Ancillary data	6.2	DVB-T System
3.10.1	Teletext	6.3	ISDB-T System
3.10.2	Programme subtitles	7	Planning Factors and Implementation Strategies
3.10.3	Broadcast multimedia services	7.1	Introduction
4	Service Multiplex and Transport	7.2	Planning factors
4.1	Available Structures	7.2.1	Current analogue systems
4.1.1	ATM	7.2.2	Sharing considerations
4.1.2	MPEG-2	7.2.3	Digital service possibilities
4.1.3	ISDB	7.2.4	Digital system techniques
4.2	Multiplexing of video, audio, and data	7.2.5	Digital network possibilities
4.2.1	Introduction	7.2.6	Planning factor considerations
4.2.2	Program versus Transport Stream multiplexing	7.2.7	Digital proposals
4.2.3	Advantages of the fixed length packetization approach	7.3	Digital implementation strategies
4.2.4	Overview of the transport subsystem	7.3.1	Service implementation in a mixed digital/analogue environment
4.3	Higher Level Multiplexing Functionality	7.3.2	Modulation and the differing planning environments
4.3.1	Single Program Transport Multiplex	7.3.3	Status around the world
4.3.2	Single Multiplex	7.3.3.1	Region 1
4.4	The PES packet format	7.3.3.2	Region 2
4.5	The packetization approach and functionality	7.3.3.3	Region 3
4.5.1	Overview	7.3.4	User requirements
4.5.2	The "link" layer	7.3.5	Service implementation in an all-digital environment
4.5.3	The adaption layer	8	List of ITU-R Recommendations