Attempting to download a fake ISO risks malware, legal liability, and disappointment. Respecting intellectual property while enjoying classic games on appropriate hardware remains the most rewarding path forward.
. Because the original game is too large for the PSP's UMD format and its hardware was deemed insufficient for a full native port, there is no official "San Andreas PSP ISO".
Files ending in .ISO are disc images. But malicious actors rename .EXE viruses or .SCR scripts to look like ISOs. One click can install keyloggers on your PC.