Large video files are often compressed into .rar archives and split into smaller volumes. This identifier points to part 22 of a multi-part RAR set; all parts (part01, part02, …) are required to extract the complete original file.
You get this error because you are missing the first part of the archive (likely .part1.rar ). The archive software requires the first file to begin the extraction process, after which it will automatically locate the subsequent parts (like part22 ). fc2ppv306162514kpart22rar