MacCaption Project
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MacCaption is retired closed caption software for use in video captions. It was originally developed by CPC Computer Prompting and Captioning Co. and called CCaptionPro. It was renamed in 2003 to MacCaption. Project files have the extension .cca. Standalone caption files have the extension .mcc, and can contain both CEA-608 and CEA-708 data.
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| Extensions | .cca |
|---|---|
| Signatures | 4d616343617074696f6e5f434341 at byte 0 (MacCaption Project File) |
| PRONOM | fmt/1821 |
| Wikidata | Q117485505 |
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From PRONOM, Wikidata. Updated 2026-10-20.