A co-occurrence graph of the query reveals:

Community recommendations often point to several established "rom-hosting" sites that offer high-speed direct downloads or cloud links (like and Mediafire ):

An ISO is a raw disc image. For PSP, ISOs contain UMD data. The term is technically precise: users reject compressed formats (CSO) or save files. ISO implies full fidelity, no audio compression, and compatibility with custom firmware (CFW) like PRO-C or LME.

Finding and downloading PSP games in ISO format (especially in Spanish) is still a popular activity for fans using emulators like PPSSPP or original modified hardware. While many legacy sites have disappeared, several reliable platforms remain for accessing a wide library of titles. Top Sites for PSP ISOs in Spanish