This is the specification of an XML based archiving and interchange format for EBU-TT subtitles. This version 1.1 provides alignment with EBU-TT-D and adds metadata to support usage requirements expressed by the UK's Digital Production Partnership.
Version 1.1 of EBU Tech 3350 (EBU-TT Part 1) is the first update since the version 1.0 publication in July 2012. The main requirements that have been resolved by this revision are:
- Alignment with the specification EBU Tech 3380 (EBU-TT-D) that was published in January 2014 for the distribution of subtitles over IP based networks, so that EBU-TT-D documents are now EBU-TT Part 1 conformant;
- Integration of errata for issues identified in Version 1.0;
- Definition of new metadata, including support for usage requirements submitted by the Digital Production Partnership (DPP).