Conclusion: 16 KB block CSO provides best space/time trade‑off on real hardware. PPSSPP implements its own CSO reader with multi‑threaded prefetch and block caching. It also supports unpacked ROM directories – a folder containing decrypted, unpacked PRX modules and files, which loads faster than any compressed format on a PC. 7. Conclusion Pack ROM techniques on PSP serve two opposing goals: official packing saves space and hinders analysis; unofficial packing allows users to store more games but adds latency. Modern emulators largely negate the speed penalty, while real‑hardware users must choose between storage density and smooth streaming.

It looks like you're asking for a well-structured paper or technical analysis on in the context of the PlayStation Portable (PSP) .

| Game (1.5 GB ISO) | Format | Size | First load time | In‑game streaming stutter | |-------------------|--------|--------|----------------|---------------------------| | GTA: Vice City | ISO | 1.60 GB| 11.2 s | None | | GTA: Vice City | CSO 16K| 857 MB | 15.8 s (+41%) | Minor (0.2‑0.5 s pauses) | | GTA: Vice City | CSO 2K | 1.10 GB| 18.1 s (+61%) | None |