The headline feature of v1.4 was the inclusion of JSO (Jconfig ISO) . At the time of its release, JSO was touted as an even more efficient compression format than CSO, offering a higher compression ratio. This was a significant upgrade for users looking to squeeze every last megabyte of space from their memory sticks.
Once finished, transfer the new .cso file directly into the ISO folder on your PSP's memory stick. Pros and Cons of Compressing PSP Games psp iso compressor v1 4 zip
Choose where you want to save the new compressed file. The headline feature of v1
Click the browse button next to "Output File" to choose where you want to save the compressed .cso file. psp iso compressor v1 4 zip