We prefer SubRip (.srt) format in plain UTF-8. We recommend using a text editor such as TextWrangler to open and re-save your .srt files in UTF-8.
Scenarist Closed Captions (.scc) is also accepted. A frame rate must be selected for SCC files. Learn more about SCC.
For other file formats, you can use the below apps or web apps to convert to SubRip.
- All text tracks should be complete and accurate, and should stay in sync with the video at all time.
- Punctuation is important.
- Avoid long lines. Each line should contain less than 50 characters, and a maximum of one line break.
- Avoid formatting tags.
We recommend performing an eyeball test by playing back your video in our system with the text track enabled and jumping to a few random spots.