Extreme compression often results in "broken" games that crash or are missing essential audio and video.
If you are planning to use these files on a modified PS4 (often required to play backups), the process for a highly compressed file looks like this: ps4 iso games highly compressed repack
A "Repack" is a compressed version of the original game. Repackers take the original 80GB file, remove unnecessary languages (like Russian or Polish audio if you only speak English), and compress the remaining data using high-compression algorithms. Extreme compression often results in "broken" games that