Use a highly compressed ISO only if you have personally created it from a disc you own. Otherwise, consider it a temporary "try before you buy" for abandonware, and seek out a legal copy if you intend to keep playing.
Developers originally filled PS2 DVDs with "dummy data"—empty, repetitive files pushed to the outer edge of the disc. This made the laser read faster (physical disc optimization). When you rip a game to ISO, you save all that useless padding.
An ISO file is a complete digital "image" of an optical disc. In its original form, was one of the few PS2 games released on a dual-layer DVD, resulting in a file size of roughly 6.3 GB to 6.5 GB . God Of War 2 Highly Compressed Iso File
With the recent release of God of War Ragnarök and the 2018 reboot on PC, you might ask: Why bother with a compressed PS2 ISO?
: Reduces data usage for users on slower connections. Use a highly compressed ISO only if you
This is the riskiest part of the process. Many websites offer "God of War 2 Highly Compressed ISO" files, but they come with pitfalls: malware, broken links, or fake files.
cutscenes. While this makes the file tiny, it can cause game-breaking bugs or infinite loading screens. This made the laser read faster (physical disc optimization)
| Feature | Full ISO (8 GB) | Highly Compressed CSO (1.8 GB) | | :--- | :--- | :--- | | Load times (first zone) | ~3 seconds | ~4–5 seconds | | FMV cutscenes | Perfect | Perfect (no quality loss) | | Audio sync | Perfect | Perfect | | Texture streaming | 100% | 99% (rare micro-stutter on very slow drives) | | File size | 8.0 GB | 1.8 GB |
"ISO is corrupted or not a valid PS2 disc" in PCSX2.
do two things: