Standard compression (ZIP/RAR) only saves about 10-15%. "Highly compressed" uses specialized formats (like CSO or CHD) to reduce the file by 50-70%.
Hence, the search for a version.
Standard compression (ZIP/RAR) only saves about 10-15%. "Highly compressed" uses specialized formats (like CSO or CHD) to reduce the file by 50-70%.
Hence, the search for a version.