OVERVIEW

Certain elements are commonly used in media-related metadata definitions. This section defines these common elements in the form of the "md" namespace.

Full documentation is a combination of the written document and the XML Schema itself.

CURRENT VERSION

VERSION 2.25

This annual release of Common Metadata contains a series  of changes to support new use cases. Details can be found here.

This version adopts the new version numbering scheme where all specifications' versions are aligned. The previous version was 2.12.        

SPECIFICATION

  • Common Metadata, TR-META-CM, v2.25, December 4, 2025 (PDF)
  • Version showing changes from v2.12 (PDF)

SCHEMA

A presentation summarizing the annual release can be found here (PDF)

VALIDATOR and Tool Suite

Information and links to the MDDF Validator are here: www.movielabs.com/md/validator.

The Tool Suite, including an online validator are at mddf.movielabs.com.

Best Practices

Guidance for solving specific problems on undertanding certain concepts can be found at www.movielabs.com/md/practices

Release History

A full release history including change lists and deprecated versions can be found here.

SUPPORTING MATERIALS

Educational Materials

We have created videos that explain concepts. An introduction to metadata can be found here. The full class is here. A video explaination of the Language Metadata Table is here.

Controlled Vocabularies

Guidelines

Examples

CONTACT

  • Please submit questions and comments to
          metadata~At~movielabs(dot)com
Creative Commons License
These works are licensed under a Creative Commons Attribution 3.0 Unported License