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Home  Video File Formats |
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Video file formats
MPEG1, which was the original video format used in CDRoms and VideoCDs, has 24-bit color and CD-quality sound. It has now been replaced by MPEG2, the standard for DVD movies. It supports resolutions of up to 1280x720 pixels at 60 fps and produces high quality video at smaller file sizes than comparable formats. It uses lossy intraframe compression.
AVI (Audio Video Interleave) developed by Microsoft, is a popular format for audio/video data on the computer but it is of relatively low quality.
Quicktime, created by Apple, is capable of storing video, audio and single photographs. It supports most encoding formats including JPEG and MPEG. It can also create or view virtual reality and 3D graphics and it allows the integration of text, graphics, video and sound into one file. To view files in web browsers a (free) plug-in is required.
RealVideo is a streaming format, which means compressed files can be played during download rather than having to wait for the file to be completed. It supports third party formats such as AVI, WAV, MIDI and MPEG. Just like Quicktime it requires a (free) RealPlayer plug-in to receive and play data.
Some digicams have limited video possibilities but their recording time is mostly restricted to about 60 seconds or less.
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