Hi i would like to build my own nes test cart for my own personal use only and would like some help to make the prg.bin and chr.bin Any help with this would be great and what type of cart i can use for this. I have a eprom programmer. NES Test Cart.nes and file size 41kb I know a bit of info on on the frist 16kb to remove and split the file both for prg and chr rom ? I would like to do the same for most cart based consoles as i repair a lot of them but would be a nice extra touch to have the test cart's.