Every time I try to open it, it says... "Windows can't open this file: File: Yume_Nikki.rar To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer. What do you want to do? -Use the Web service to find the correct program -Select a program from a list of installed programs" What do I need to download to make this work? I remember this error from when I tried to download ROMs without knowing you needed an emulator.