I am trying to play the Super Mario Bros. 3 hack. I opened xdeltaUI and put the patch in "Patch:" and clean rom in "Source File:" but I don't know what to put in "Output File:". If I click apply leaving the Source File empty I get "Make sure all file targets are set". So what do I put for the Source File. Sorry if this is a noob question I usually use xdeltaGUI.