I'll tell you something. rpcs3 is not finished it will NOT play commercial games such every game sold with a package and a price on it. It will play games that are homebrewed such as tetris and for the size homebrew game are small to not even go as far as 1 mb. And it might take years before recreating the ps3. So, you can't access PS3 files maybe because their no way to read them yet. And don't talk about video that says that PS3 is been emulated. Their are fake and can have viruses or survey that can take your private information.
I hope that helps