There are a lot of different closed caption file formats out there, and every platform has its own requirements on what to use. It can be confusing for those that just want to add captions to videos without getting into a lot of technical details so we’ve put together a guide to make things simple.

Youtube (Without Integration)

YouTube recommends Scenarist (.scc) format.  Rev also recommends TTML or WebVTT; any of these three options provides some control over appearance of your captions on the YouTube platform.

Compatible formats:

  • SubRip (.srt)
  • WebVTT (.vtt)
  • DFXP/TTML (.dxfp)
  • Scenarist (.scc)
  • SAMI (.sami)

Vimeo

Vimeo lists WebVTT (.vtt) as its preferred format, but has several formats that are compatible.

Compatible formats:

  • WebVTT (.vtt)
  • SubRip (.srt)
  • DXFP/TTML (.dxfp)
  • Scenarist (.scc)
  • SAMI (.SAMI)

Adobe Products (Encore, Captivate, Flash, and Premiere Pro)

Compatible formats:

  • Scenarist (.scc)
  • MacCaption (.mcc)
  • XML (.xml) Note: You may order captions in TTML (.ttml) format to be compatible with XML)
  • Spruce Subtitle File (.STL).

Subtitle Edit

Subtitle Edit supports many formats, but we’ll list the common ones that Rev supports.

Compatible formats:

  • SubRip (.srt)
  • Scenarist (.scc)
  • Timed Text (.ttml)
  • various .xml based formats
  • DXFP (.dxfp),
  • WebVTT (.vtt)
  • Spruce Subtitle File (.stl).

Annotation Edit

Compatible formats:

Import:

  • SubRip (.srt)
  • Scenarist (.scc)
  • Timed Text (.ttml)
  • DXFP (.dxfp)
  • WebVTT (.vtt)
  • Cheetah CAP (.cap)
  • MacCaption (.mcc)
  • Quicktime Subtitle (mov, m4v)
  • Spruce Subtitle File (.stl).

Export:

  • Scenarist (.scc)
  • Spruce STL (.stl)
  • Quicktime (,txt)
  • SubRip (.srt)
  • W3C Timed Text/DFXP/TTML (.xml)
  • WebVTT (.vtt)

Netflix

Netflix has two recommended formats. The EMA Closed Captions Working Group has identified Scenarist (.scc) as a preferred format due to its status as the de facto standard for CEA-608 and CEA-708 data.  SMPTE-TT is also recommended as, under the applicable laws, it is considered safe if captions are compliant.

Compatible formats:

  • SubRip (.srt)
  • Scenarist (.scc)
  • Timed Text (.ttml)
  • DXFP (.dxfp)
  • WebVTT (.vtt)
  • Cheetah CAP (.cap)
  • MacCaption (.mcc)
  • Quicktime Subtitle (.qt.txt)
  • Spruce Subtitle File (.stl).
  • XML (.xml)

Amazon

Amazon Video Direct requires captions on all new videos uploaded to the service.

Compatible formats:

  • Scenarist (.scc)
  • SMPTE-TT (.xml)
  • EBU-TT (.xml)
  • DFXP Full/TTML (.dfxp)
  • iTunes Timed Text (.iTT)
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