2670 MacCaption File 1 Text (Structured) 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. In 2003, it was renamed 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. 220 The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints 07 Feb 2023 07 Feb 2023 fmt/1819 PUID mcc File extension 2159 MacCaption File v.1 BOF Absolute from beginning of file, magic bytes: File Format=MacCaption_MCC V1 1 Absolute from BOF 0 0 46696C6520466F726D61743D4D616343617074696F6E5F4D4343205631