Files that contain the .f4v file extension are Flash video files. These files are MPEG-4 files that have been renamed with the .f4v extension.
The F4V file format is the widely-used standard format for the distribution of dynamic media across the Internet. F4V files are actually container files that are used for the playback of certain media files.
F4V files contain media content that is delivered over the Internet for playback in the Adobe Flash Player. It is estimated that up to 80 percent of today's online videos are viewed using Adobe Flash technology. The Adobe Air application is also able to support the F4V file format.
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If you have additional information about the F4V file format or software that uses files with the F4V suffix, please do get in touch - we would love hearing from you.