Iso Compressor [new]: Psp

On emulators like PPSSPP (modern PC), the difference is negligible because CPU decompression is faster than disk I/O.

Compressing PSP ISO files is a common practice to save storage space on memory sticks or emulators. The process typically involves converting a standard (an exact digital copy of a UMD disc) into a CSO (Compressed ISO) or CHD format. Top Recommended Tools

Analysis of Data Compression Techniques and Architectures in PlayStation Portable (PSP) ISO Image Processing