Ensure that your file names do not contain special characters, symbols, or non-English alphabets. Keep file paths short (e.g., C:\Games\game.iso ).
: Copy the resulting file into the ISO folder on your PSP's memory stick. Requirements & Compatibility PSP ISO Compressor | Save Space on your Memory Card! psp iso compressor v1 4 zip
Choose a destination folder (e.g., C:\PSP Tools\ ) and click . Step-by-Step Guide to Compressing PSP Games Ensure that your file names do not contain
: Compressed CSO files are much smaller. For example, a 446MB ISO can shrink to roughly 292MB as a CSO. Game Performance psp iso compressor v1 4 zip