Highly compressed PS4 ISO games are essentially game files that have been shrunk in size using advanced compression algorithms. These compressed files are typically in the ISO format, which is a widely recognized and compatible format for game files. By compressing the game files, they can be significantly reduced in size, making them easier to store and download.
Developers use tools to strip out "bloat" like multi-language files (keeping only English, for example) or downscaling 4K cinematics to 1080p. Why Players Look for Compressed Files ps4 iso games highly compressed