If an .sfv file is included in the folder, use it to check that none of the parts were corrupted during the download.

These types of files are common in file-sharing communities (The Scene) and usually contain software, music compilations, or high-definition video. Meaning of "Proper Review"

A "PROPER" tag in a release name indicates that a previous version of this content was flawed (e.g., out of sync, missing files, or bad quality) and this version is the corrected "proper" release. Actionable Steps

Use a utility like WinRAR or 7-Zip . Right-click on part1.rar and select "Extract Here"; the software will automatically pull data from the other parts.