Broadcast Markup Language

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Broadcast Markup Language, or BML, is an XML-based standard developed by Japanese ARIB association as a data broadcasting specification for digital HDTV broadcasting. It was finalized in 1999, becoming ARIB STD B24 "Data Coding and Transmission Specification for Digital Broadcasting".

STD B24 specification is derived from an early draft of XHTML 1.0 strict, which it extends and alters. Some subset of CSS 1 and 2 is supported, as well as ECMAScript.

Example BML header:

<?xml version="1.0" encoding="EUC-JP" ?>
<!DOCTYPE bml PUBLIC "+//ARIB STD-B24:1999//DTD BML Document//JA" "bml_1_0.dtd">
<?bml bml-version="1.0" ?>

Since version 1.0 in 1999, BML standard has gone through several revisions, and as of 2006, it is on version 4.3. However due to a large installed user base of receivers which only support the original 1.0 specification, broadcasters are not able to introduce new features defined in later revisions.

[edit] See also

• Integrated Services Digital Broadcasting

[edit] External links

• (Japanese) Official changelog for ARIB STD-B24
• STD-B24 in English (version 3.2)