EN 15907 Language Tag
From filmstandards.org
Definition from the standard
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A coded value that may appear as an attribute or element value, denoting a natural language. The syntax for the language tag follows the definition given in RFC 4646. All codes from ISO 639-1and ISO 639-2 are syntactically valid RFC 4646 expressions. Therefore, all extensions such as script, region and language variant are optional. |