I am attempting to explore and read my PSP's .rco files located in
Flash0:\vsh\resource and so far I have not had any luck. I have successfully dumped and decrypted my flash, however, I have not been able to find a program for editing .rco files above firmware 2.60 (RCO Editor v1.15c). Is anyone aware of a tool for editing .rco files from firmware 5.00?

Thanks in advance
-Celanor