Comparing Video Formats

Continued from page: 1

Thursday, September 02, 2004

Compression formats explained

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MPEG-4: This is a standard for multimedia and Web compression. In this kind of compression, individual objects within a scene are tracked separately and compressed together to create an MPEG-4 file. This results in very efficient compression that can vary from low-bit rates to very high-bit rates. It also allows developers to control objects independently in a scene.

MPEG-7: This standard, currently under development, is also called 'Multimedia Content Description Interface'. It is aimed at providing a compression format for multimedia content that will include information on content manipulation, filtering and personalization, as well as the integrity and security of the content. This means that contrary to the previous MPEG standards, which described actual content, MPEG-7 will represent information about the content.

DivX: It is a software application that uses the MPEG-4 standard to compress digital video and maintain its quality. You can download nimo, which will install the latest codecs on your machine including DivX.

If you are developing a video for the Internet, you may want to use a compression format, which has a high compression and low resolution, such as RealVideo, QuickTime or Windows Media Video.

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