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QuickTime Movie File Format Specification, May 1996
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QuickTime Movie File Format Specification, May 1996
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Base media is used to store data that is not intended to be displayed in QuickTime movies. The data may be stored for an application to retrieve, or it may be used to modify another track. It has a media type of 'gnrc' . Other media types are often built on top of the base media. Examples of media types derived from the base media include MPEG, sprite, text, music, and time code.
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