I've looked through the stickies and they seem to only list guides for using Devhook. But I wanted to know how I run my ISO and CSO files using M33 3.52 custom firmware. I've already got the files uncompressed and in a single .iso form, just unsure about what to do from here. Also, do filename's really matter ? I'm trying to get Bleach: Heat the soul 4 onto my psp, but the filename was cvn-brehs4.iso which looked too weird so I renamed it.