Always right-click on Part 1 and select "Extract Here." The software (WinRAR or 7-Zip) will automatically pull the data from Part 2 to complete the file. Which direction were you hoping to go with this?
Argue whether these files represent a form of "digital archaeology" or simple copyright infringement. KHDDD-USA-CIA-RF-Ziperto.part2.rar
If you are writing about the cultural significance of these files, here is a quick outline for a draft: Always right-click on Part 1 and select "Extract Here
If you are writing a piece on digital preservation, the history of fan translations/roms, or the ethics of file sharing, I can help you outline and draft that. the history of fan translations/roms