The document introduces several MPEG standards for audio and video compression and transmission, including MPEG-1, MPEG-2, MPEG-4, MPEG-7, and MPEG-21. MPEG-1 was the first standard and defines lossy compression for video and audio. It became the most widely compatible format for these media. MPEG-2 built upon MPEG-1 and is used widely for digital television and DVD formats. MPEG-4 added new features like 3D rendering and interactivity. MPEG-7 defined standards for multimedia content description and MPEG-21 aims to define an open framework for multimedia applications and digital rights management.

1. Introduction to MPEG

3. standards for audio and video compression and transmission

5. MPEG-2

6. MPEG-4

7. MPEG-7

8. MPEG-21

10. MPEG-1 has become the most widely compatible lossy audio/video format in the world

12. Program streams

13. Multiplexing

15. Resolution/Bitrate

16. Frame/picture/block types

17. Motion vectors

18. DCT

19. Quantization

20. Entropy coding

22. Layer II ： a lossy audio format designed to provide high quality at about 192 kbit/s for stereo sound

23. Layer III/MP3 ： a lossy audio format designed to provide acceptable quality at about 64 kbit/s for monaural audio over single-channel (BRI) ISDN links, and 128 kbit/s for stereo sound.

25. Part 5 of the MPEG-1 standard includes reference software, and is defined in ISO/IEC-11172-5.

26. Note that Mp3 NOT 「 MEPG3 」 ,means MPEG1 Layer 3

31. specifies the format of movies and other programs that are distributed on DVD and similar discs.

32. MPEG-2 evolved out of the shortcomings of MPEG-1.

35. object-oriented composite files (including audio, video and VRML objects)

36. support for externally-specified Digital Rights Management

37. various types of interactivity

39. left to individual developers to decide whether to implement the features of MPEG-4.

41. formally called Multimedia Content Description Interface.

42. The combination of MPEG-4 and MPEG-7 has been referred to as MPEG-47.

44. a language to specify these schemes, called the Description Definition Language (short DDL in the standard)

45. a scheme for coding the description

47. MPEG-21 is ratified in the standard ISO/IEC 21000

48. MPEG-21 defines a "Rights Expression Language" standard as means of sharing digital rights/permissions/restrictions for digital content from content creator to content consumer.