: Many automated backup scripts rename video files using a "backup [ID]" format to prevent overwriting original files during sync operations.
The name suggests a , likely originating from one of the following scenarios: prbackup 132.mkv
The Matroska Video ( .mkv ) container is an open-standard format that can hold unlimited tracks of video, audio, and subtitles. If you have this file on your drive, you can use a tool like MediaInfo to see the metadata (codec, date created, and encoding software), which would reveal exactly which program produced it. : Many automated backup scripts rename video files
Based on available technical data, a file named does not correspond to a known commercial feature film, documentary, or standard software feature. and encoding software)