Interactive Content
HD DVDs use Advanced Content to allow interactive content to be authored for discs. Microsoft's implementation of Advanced Content is the HDi Interactive Format, and "HDi" is frequently used to refer to the Advanced Content system. Advanced Content is based on web technologies such as HTML, XML, CSS, SMIL, and ECMAScript (JavaScript), so authoring in Advanced Content should be a fairly easy transition for web developers. No existing DVD authoring experience is required. In comparison Blu-ray Disc content is authored using either a scripting environment (BDMV) or a Java-based platform (BD-J). DVD video discs use pre-rendered MPEG segments, selectable subtitle pictures, and simple programmatic navigation which is considerably more limited.
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“They tell us that women can bring better things to pass by indirect influence. Try to persuade any man that he will have more weight, more influence, if he gives up his vote, allies himself with no party and relies on influence to achieve his ends! By all means let us use to the utmost whatever influence we have, but in all justice do not ask us to be content with this.”
—Mrs. William C. Gannett, U.S. suffragist. As quoted in History of Woman Suffrage, vol. 5, ch. 8, by Ida Husted Harper (1922)