(7-Zip) format, designed to reduce the original ~16GB to 22GB file size down to a few hundred megabytes or a few gigabytes. Key Context & Risks 压缩 (Compression):
If you are looking for specific older versions for modding or preservation, some users host archives on the Internet Archive Grand Theft Auto IV Complete Edition [PROPHET] A common scene release archived for historical purposes. GTA IV Windows Live Version gta iv rip7z 2021
Since GTA IV is an older title (2008), playing a 2021 repack on modern Windows 10 or 11 usually requires these "pieces" to run smoothly: The "VRAM Fix": (7-Zip) format, designed to reduce the original ~16GB