Video Format ( 1 )


If you like to see or download movie from internet, you must be know the format of video. Here some of that.

AVI format The AVI format, whose full name is "Audio Video Interleaved very familiar, for the peoples. This format is widely used in daily life, and its video quality is greater, while there are also many errors as their large, growing, the hard disk. In 1992, Microsoft Corporation developed AVI video format, known by the people with Windows3.1. To know, "Audio Video Interleaved, the AVI file interleaves video and audio data and play together. One advantage of the AVI file is-it can be used and played in various platforms. In another side to achieve good quality, the size of the file is too large. Tube Still, there are various standard compression, so that some AVI files can not be played if the system does not contain a good codec. In order to play an AVI, sometimes you must first update of the new codecs and is very annoying.

MPEG format The full name of the MPEG? Moving Picture Experts Group, which is an international standard for compression of images in motion. MPEG compression algorithms for data on the form small pieces, which can be transmitted easily, and then unpacked. The redundancy between the pictures and other images transferred away, while most parts are similar to the size of the file. The compression rate can reach 50:1, and it is a good standard video-compatible. currently comprises three MPEG compression standards: MPEG-1, MPEG-2 and MPEG-4. In addition, MPEG-7 and MPEG-21 are in preparation.

MPEG-4 format MPEG-4 (MP4) is a film, the compression standard used to the Internet, dissemination and on a storage medium. Compared to MPEG-2, MPEG-4 provides for the improvement of quality in a small size. Not only is it possible in the limited bandwidth, but also in a wide bandwidth. Currently, most MPEG-4 compression technology, DivX and XviD. Generated by the DivX XviD or lose a little quality, but the size is significantly reduced. It offers users a way to save a movie, a CD-ROM drive, while the quality is better than VCD course.