| Spec | Detail | |---------------------|----------------------------------| | Original ISO size | ~1.1 GB – 1.4 GB (CSO compressed) | | Resolution | 480 × 272 | | Framerate | 30 FPS (target) | | Audio | Atrac3+ / MP3 streams | | Save data | ~300 KB – 1 MB |

The game shipped on a single UMD. When ripped to ISO format, the typical size is 1.2–1.3 GB. A CSO (Compressed ISO) can reduce it to ~800–900 MB with minimal performance loss.

You will need:

The original UFC Undisputed 2010 PSP ISO file is approximately 1.1 GB to 1.6 GB in size. This presents two major problems:

This is why gamers seek a highly compressed version. Compression reduces the file size to anywhere between 200 MB and 500 MB by repacking audio, videos, and duplicate assets without destroying core gameplay.

| Risk Type | Details | |------------------------|-------------------------------------------------------------------------| | Malware | .exe files disguised as “installer” instead of a clean ISO. | | Bricked save data | Corrupted compression can cause PPSSPP to crash or PSP to freeze. | | Missing content | Career mode progress halts due to stripped video triggers. | | False size claim | Archive is small, but decompressed file may still be ~800 MB. | | Legal liability | Downloading copyrighted game ISOs (even old titles) is illegal in most countries. |

Final verdict: Avoid “highly compressed” repacks. Instead, find a verified full ISO (1.2 GB) from a trusted emulation community or buy the original disc. If you already own the game, compressing it yourself with tools like CSO_Compress_GUI or UMDGen yields a stable ~700 MB file without content loss.

These files are found on:

Typical file naming pattern:
UFC_Undisputed_2010_USA_PSP-HR-HIGHLY_COMPRESSED.7z (150 MB)

After downloading: