A .rar file is a proprietary archive format used for data compression and error recovery. When a file is split into parts (like .part2.rar ), it indicates a "multi-volume archive."
When writing about these files, document the hash values (MD5 or SHA-256) to provide a digital fingerprint for future researchers to verify the file's authenticity.
Many such archives focus on preserving ephemeral media, regional history, or niche artistic works that lack official digital distribution.
Splitting files ensures that if one part is corrupted during download, only that specific segment needs to be retrieved again.