Developer pspZorba's PSPlorer is a file management app that can view the PSP's memory stick, flash directories, and UMD inserted. The newest version allows for backing up UMDs as ISOs or CSOs, as well as converting ISOs to CSOs.

Here's the changelog:

• UMD backup in CSO format
• File conversion from ISO to CSO
• Transfer directories in ADHOC mode
• File and directory properties change (access right, creation/update/access dates) (WELL it’s not really new it was present in the homebrew but not in the doc)
• A single bug correction in the default value of the OSK virtual keyboard. The effect of the bug was that sometimes strange extra characters could be seen in the default value.

The most interesting feature, the ISO/CSO from UMD option, works quite well. After about an hour or two, the app made a CSO straight from a copy of Castlevania: the Dracula X Chronicles, which ran without any issues excluding minor lag in load times. Be sure to read the Read-me included before running, as this app can mess a few things up if you aren't careful.

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