BD-J
specification supporting Java ME Xlets for advanced content on Blu-ray Disc and the Packaged Media profile of Globally Executable MHP
BD-J, or Blu-ray Disc Java, is a specification supporting Java ME (specifically the Personal Basis Profile of the Connected Device Configuration or CDC) Xlets for advanced content on Blu-ray Disc and the Packaged Media profile of Globally Executable MHP (GEM).
BD-J allows for more sophisticated bonus content on Blu-ray Disc titles than standard DVD, including network access, picture-in-picture, and access to expanded local storage. Collectively, these features (other than internet access) are referred to as "Bonus View", and the addition of internet access is called "BD Live". BD-J was developed by the Blu-ray Disc Association. All Blu-ray Disc players supporting video content are required by the specification to support BD-J. Starting on October 31, 2007, all new players are required to have hardware support for the "Bonus View" features, but the players may require future firmware updates to enable the aforementioned features. "BD Live" support is always optional for a BD player.
BD-J Xlet capabilities
The invocation of BD-J Xlets are triggered by events occurring around them—for example, by the selection of a film title or by the insertion of a new disc. Xlets in turn can then call other Xlets into play.
Security in BD-J is based on the Java platform security model. That is, signed applications in JARs can perform more tasks than non-signed, such as Read/Write access to local storage, network access, selection of other titles on the BD-ROM disc, and control of other running BD-J applications.
The public source identifies “BD-J” as specification supporting Java ME Xlets for advanced content on Blu-ray Disc and the Packaged Media profile of Globally Executable MHP. This brief keeps that definition visible, then builds a research path around BD-J, specification and supporting.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 7, 2026. The linked authority identifier is Q795747. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2007.
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This entry incorporates text from “BD-J” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.