I've found surprisingly little information about this. I've decided to check out the ME CFW, but there doesn't seem to be an option to protect the CFW folders from ISOs that might remove them or act differently if present. I just want to know for sure if it does or doesn't hide CFW folders by default. If not, it's not a big deal, I'll just install the CFW Folder Blocker plugin. Also, I've seen conflicting info on the Execute OPNSSMP.bin in ISO and Execute PBOOT.PBP options. If someone can explain exactly what they do, that would be great. I've been out of the homebrew seen for a while and just came back a few months ago. Even then, I haven't really looked into anything relating to official software until very recently.