Entree Rep: 0 Joined: 13 Mar 2008 Posts: 9 OFFLINE | A human being can’t live without oxygen, that is because the aerosphere. And a modern society can’t exist without information, that is because the surrounding sound and visual mediums. As this reality being accepted by people, we are also realizing that the MP4 is playing more important in sound and visual medium field.
Why said so? I bet everybody have ever experienced watching and listening to movies and music on a portable media player like an iPod, a PSP, a mobile phone, or a Zune and so on. When you are enjoying your colorful and fantastic video and audio entertaining, have you noticed that almost all of them support playing the .mp4 video files? And another question would pop out if you keep going, which may be asked as “what is the MP4?".
Actually, the word “MP4” was derived from MPEG-4, and the MPEG-4 comes from an abbreviate of Moving Picture Experts Group, a working group of ISO/IEC charged with the development of video and audio encoding standards which also issued MPEG-1 and MPEG-2.
There are two key parts of MPEG-4 aware to be the general MP4 file: MPEG-4 Part 2 and MPEG-4 Part 10. MPEG-4 Part 2 has been called MPEG SP/ASP as an Advanced Simple Profile used by codecs such as DivX, XviD, Nero Digital and 3ivx and by Quicktime 6 as well. MPEG-4 Part 10 mainly refers to the MPEG-4 AVC (Advanced Video Coding) or H.264, which being used by the x264 codec, by Nero Digital AVC, by Quicktime 7, and by next-generation DVD formats like HD-DVD and Blu-ray Disc. A unique part that should be mentioned either is the MPEG-4 Part 14, which has being used to commonly store digital video and audio streams, some other data like subtitles and static images, and some audio-only MP4 files called M4A.
Admittedly, there are still a lot of other formats fill in the Internet. No matter an AVI file, a WMV file, or an MOV or RM file, each of them plays prominent on the stage of information medium. But with more and more MP4 files generating and increasing, we are also calling more software applications in MP4 playing and converting.
Like iTunes from Apple and Media Player from Microsoft for MP4 playing, we do have so many choices on MP4 conversion applications also, which can be freely chosen from different sorts of brands like Xilisoft, ImTOO, CUCUSOFT, and 4Media, etc. They are capable and professional of converting most popular video and audio formats into MP4 video files for your iPod, PSP, or other portable players supported.
Wanna know more about MP4? Why not try some software yourself? It will make you the real expert on MP4!
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