Understanding Enhancements
A MetaSync enhancement contains information that adds content to picture, sound, and graphics. This information is called metadata because it is data that points to other data (the content). For example, an enhancement could include the path for a file that contains all dialog spoken by a character in a film. Another type of enhancement could include a URL for a Web page to be used for ITV (this type of enhancement is similar to an ITV trigger).
Enhancements are processed in all MetaSync components, but they take different forms, depending on the component (see MetaSync Components).
MetaSync supports two types of enhancements:
  ITV: An enhancement for interactive or enhanced broadcast. For this release, MetaSync supports only enhancements that conform to SMPTE standard 363M (based on the ATVEF Enhanced Content Specification). Support for other standards are planned for future releases.
  Opaque: For this release, any enhancement other than ITV SMPTE-363M.

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