Cannot Load Unpacked ISO

[ArecaidianFox]

I cannot seem to be able to load unpacked ISO files. They were unpacked by Dolphin, and I have the apploader and folder targets set up correctly, but when I try to boot the .DOL file, it goes to a black screen and hangs. I'm using 4.0-9071. I apologize if this post lacks needed information, I've never really had to post much in these forums, and I'm willing to provide whatever is needed to help figure this out.