ISO Tool v1.977 is released. ISO Tool is a handy homebrew application that lets you manage and backup your UMD's straight from your PSP. ISO Tool completes by Japanese Developer Takka.

ISO Tool v1.977 Changelog:
[NEW] (Installation media) Koihime Musou Wei / Kure / support
* disc_change.prx interchange does not recognize the ISO, before Disc1 / 2 Please install on each
[NEW] support for external font files. EBOOT font.fnt same place if there is a preference to use
(fnt format is the format used in RockBox. bdf files can be created)

Download: ISO Tool v1.977
Source: Here