Validate your TTML, IMSC, SMPTE-TT and EBU-TT-D files

You ought to be validating your TTML, IMSC, SMPTE-TT and EBU-TT-D documents against IMSC HRM!

IMSC HRM helps ensure these documents render correctly at the end-user device.

Thanks to Michael Dolan, Pearl TV, Motion Picture Laboratories, Inc. (MovieLabs) and Nigel Megitt for making this W3C recommendation possible.

#subtitles #captions #imsc #ttml #w3c #accessibility