About the whole new compression thing, is this why you guys need a PSP emulator(same case with Phantasia PSP?)? So you can crack it?
That's not the issue, from what I gathered it's really how the game is packaged and how it's structure is.
if, it was the same and no further reverse engineer was needed it would be easy enough to do (like people do undubs for psp these days) but as is... it would require a bunch of work. That's all there is to it really, no problem in compiling the iso and making it run on psp, not with the degree of explotability the console has.