Video_2018-02-15_03-57-45.rar -

Instead of compressing each video file individually, the compression algorithm looks for patterns across all files in the archive.

Automated backups of surveillance footage often group clips into solid RAR files to save disk space. video_2018-02-15_03-57-45.rar

Files with this specific timestamp format and "solid" compression are frequently found in: Instead of compressing each video file individually, the

The native application for .rar files (displays "Solid" in the archive information). A "solid" archive is a specific compression method

A "solid" archive is a specific compression method where all files within the .rar package are treated as one continuous data stream.

If you did not create this file or receive it from a trusted source, be cautious. Archive files can be used to hide malware. Scan the file with antivirus software before extracting.

If you found this on a drive, it might be a recovered container of fragmented video data.