As is well known, pure video stream only can be played orderly, and can't be random accessed or played in network. File format is designed to solve these problems.

视频流本身只能顺序播放，不能进行随机访问和网络流化播放，文件封装则是为解决这些问题而设计的。

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Watch a video. Never underestimate the power of visual language to tap deeply into your subconscious to bring about a pure sense of happiness and inner peace.

不要低估视觉语言的能力，它能进入你的潜意识激发快乐和内心平静的纯净感觉。

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Among many methods that realize video coding, the method based on DSP chip also bears remarkable advantage besides pure software method which is used widely.

在诸多视频编码实现方法中，除了已广泛应用的纯软件方法外，基于DSP芯片的方法也具有显著的优势。

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Marie, against the Ann Arbor Pure Michigan video.

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The Flip burst onto the scene in 2007, with its Ultra Video camera, created by Pure Digital Technologies.

FORBES: Miss the Flip? There Are Alternatives to the Video Cam

Pure Digital was all about making the still new digital video technology accessible to everyone, and the Flip hit the sweet spot.

FORBES: Miss the Flip? There Are Alternatives to the Video Cam