I Ps2 Highly Compressed Games Iso Upd Page
(chdman):
After compression, integrity is critical: i ps2 highly compressed games iso upd
Look for "PS2 Redump" collections. These are verified, clean rips. (chdman): After compression, integrity is critical: Look for
| Format | Random Access | Ratio (vs ISO) | Decomp Speed | Emulator Support | |--------|---------------|----------------|--------------|-------------------------| | ISO | Full | 100% | N/A | All | | CSO | Yes (blocks) | 40–60% | Medium | PCSX2, AetherSX2 | | CHD | Yes (hunks) | 30–50% | Medium-Slow | PCSX2 nightly, RetroArch| | GZ | No | 35–55% | Medium | Archiving only | | ZSO | Yes | 40–55% | Very Fast | Experimental | When you rip a game to ISO, you keep this dummy data
Developers of tools like CISO (Compressed ISO) and PCSX2 realized that PS2 discs contain massive amounts of "dummy data"—empty padding pushed to the outer edge of the disc for faster reading speeds on the original hardware. When you rip a game to ISO, you keep this dummy data. When you compress it to CSO or 7z:
(Windows):