At the heart of this search is a fundamental misunderstanding of modern data architecture. Unlike the early days of emulation, where a 700MB CD-ROM could be "ripped" and squeezed into a tiny archive, modern PS4 titles are massive, often exceeding 50GB. Encrypted Assets:
Including a methodology if it's an empirical study, but since the user didn't specify data collection, maybe a literature review with case studies. Also, possible interviews with community members or developers who deal with piracy. ps4 iso games highly compressed link