That key might be provided free for trial or personal use, and it can be associated with layered subscription pricing models for commercial use or to access advanced content and functionality.

此密钥可以免费试用或供个人使用，也可以将其与分层订阅定价模型关联来供商业使用或访问高级内容和功能。

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To supplement the advanced content, Opta is also using social media to get fans more involved.

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In addition to having access to Cox's vast VOD library and Advanced TV content, subscribers using a TiVo Premiere box will also be able to enjoy TiVo's entire suite of advanced features including access to near infinite broadband content including movies and music, remote scheduling, multi-room viewing, interactive applications and TiVoToGo functionality.

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And Digg, like many other sites that revealed the HD-DVD code, has already been sent a cease and desist letter from the Advanced Access Content System (AACS), a digital rights management development group that includes the fearsome lineup of the Walt Disney Co.

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