Abstract
To video signal recording for storage medium, high efficiency coding is used same as broadcast and communication. Currently, MPEG-2 is most widely used coding method and enhancement of efficiency is tried. About the MPEG-4 which achieves more effective, most newly method is Advanced Simple Profile, and Part 10 (H.264) is discussed now. Some non-standard methods are used mainly in USA not only for network, but also for storage media. I show technical items mainly about newest Part 10 and movement of new coding method and study. On the other hand, professional equipment that requires frame editing uses intra-frame coding. Improvement is tried in this type coding. In case of bit-stream recording, using of tans-coding will be increase.
