: Likely the project or "set" name. In many online communities, "SS" prefixes often refer to "ScreenShots," "Sample Sets," or specific creator initials. v-019 : Represents the version number or volume (Volume 19).
: You need 7-Zip or WinRAR to join these parts back together.
: This nomenclature is most common in forums or image-sharing boards dedicated to specific visual archives.
: If a single byte in part .003 is corrupted, the entire extraction of the "SS-Nata" volume will fail.