Metadata Identifier Keyspaces Constants that describe metadata identifier keyspaces. TopicsConstantskCMMetadataKeySpace_QuickTimeUserDatakCMMetadataKeySpace_ISOUserDatakCMMetadataKeySpace_QuickTimeMetadatakCMMetadataKeySpace_iTuneskCMMetadataKeySpace_ID3kCMMetadataKeySpace_IcykCMMetadataKeySpace_HLSDateRange See AlsoConstantsMetadata Identifier Error CodesMetadata Registry Error CodesMetadata IdentifiersMetadata Base Data TypesMetadata Data Types