Developers can define their own extension points and that in turn creates a new custom metadata tag.

开发者可以定义自己的扩展点，这些扩展点会创建新的客户化元数据标签。

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SourceMate includes an option to allow users to import and export metadata tag configuration files (even in version 1.0).

SourceMate提供了选项，用户可以导入、导出元数据配置文件(甚至是1.0版的文件)。

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While MXML defines the GUI, ActionScript offers the behavior for handling events, binding data (through the [Bindable] metadata tag), and the ability to call a remote service.

mxml定义gui，而ActionScript提供用于处理事件、绑定数据(通过[Bindable]元数据标记)的行为，以及调用远程服务的能力。

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In a symbiotic program that should potentially benefit studios, consumers, and perhaps even the medium itself, Apple hooked up with HD Radio developer iBiquity to integrate a "Tag" button into future hardware releases, which when triggered loads metadata about the current song to memory for future transfer to a docked iPod.

ENGADGET: HD Radio rolls out iTunes tagging