| BIOS File | Origin | Compatibility | Audio Quality | Region Lock | Save States | "Extra Quality" Score |
|-----------|--------|---------------|---------------|-------------|--------------|-----------------------|
| scph1001.bin | US PS1 (1995) | 85% | Fair | Yes | Good | ★☆☆☆☆ |
| psxonpsp.bin (generic 3.03) | PSP v3.03 | 92% | Good | No | Decent | ★★★☆☆ |
| psxonpsp660.bin | PSP v6.60 | 98% | Excellent | No | Excellent | ★★★★★ |
| psxonpsp661.bin | PSP v6.61 | 97% | Excellent | No | Excellent | ★★★★☆ (minor regression in some games due to DRM) |
Conclusion: The 6.60 version consistently beats earlier POPS BIOS and even matches dedicated PC emulator BIOS (like HLE) in many titles, while adding hardware-accelerated graphical fixes. psxonpsp660bin bios file extra quality
The “extra quality” tag was popularized by certain ROM/BIOS sharing websites and YouTube creators in the mid-2010s. They claimed that a modified or “patched” version of the psxonpsp660.bin file could: | BIOS File | Origin | Compatibility |
Traditional PS1 emulators (like ePSXe or VGS) originally required a dump of a real PlayStation console’s BIOS (e.g., scph1001.bin, scph5501.bin). However, the PSP’s POPS BIOS offers several advantages: The “extra quality” tag was popularized by certain
When the PSP’s firmware 6.60 was cracked and its PS1 BIOS extracted, the scene celebrated. The file was named psxonpsp660.bin – with “psx” standing for PlayStation, “onpsp” meaning on PSP, and “660” denoting firmware 6.60.
DuckStation is currently the most accurate and feature-rich PS1 emulator.
Result: You now have actual extra quality – high res, stable geometry, pure sound.