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MPEG4
What is MPEG4?
When DVD breaks through many obstacles, finally starts to enter families with high
resolution image and shocking Dolby AC-3 audio advantage, a video compression coding
new technology with the name of “DVD Killer”----DivX MPEG4(Briefly called MPEG4)
slowly comes out.
MPEG is actually the abbreviation of Moving Pictures Experts Group, is an
international audio and video format, it has good compatibility, strong compression rate( the
highest 200:1) and the least data loss. Currently there are only 2 official classes, MPEG-I and
MPEG-II, Among them MPEG-II is the current DVD. But MPEG-II also has its own
advantage and disadvantage, like the advantage of large storage capacity, clear picture, vivid
audio, but also with the disadvantage of encryption, region code and high price of original
movies, then MPEG4 technology comes out. Its characteristics is “Small Capacity, Good
Quality”. It origins from Microsoft MPEG4 v3 standard. Its video adopts MPEG4 format to
compress, it has high resolution picture like DVD, audio adopts MP3 format to have high
quality compression, finally audio and video makes up AVI files, whose effect is enough to
make us feel new and fresh. To our surprise and praise, compression ratio of MPEG4 is quite
astonishing; one CD-ROM with standard capacity can store 80-120 minutes high resolution
movies, similar to DVD(MPEG2) quality. So the coming of DivX MPEG4 video coding
technology basically solve the contradiction of picture quality and capacity. Its coming
means new era of movie format.
The player can smoothly play
DivX-MPEG4 files while normal DVD Player
can’t, at the same time it is compatible with
DVD, VCD, MP3 files,etc, again with 20G(or
more than 20G) HDD, it can store high quality
movie and image files in the largest scale.
