Subrip to iTunes Text Track (.srt to iTT) converter
Quick Look plugin for WebVTT (.vtt)
Testing WebVTT Closed Captions
The code used in Unity3d Gaming Subtitle Options Web App.
Telus finally adds Closed Captions to Optik TV Go app and online.
Minimum Gaming Subtitle Options
Timing Close Captions with Aegisub
Apple ‘Clips’ app