Nintendo DS loses battle to unauthorized third-party mods According to a Nintendo spokesperson, the company has lost the battle against unauthorized third-party modification devices for their DS handheld. "We cannot smash them all", read the spokesperson's quote. The R4 and M3, just two of the more popular mod devices are microSD readers that fit in the DS's Slot-1 port and allows for the playing of downloaded Roms, as well as music and movies. Both cards retail for the very cheap price of $45 USD and require no drivers. Unfortunately for Nintendo, these products are technically legal although most if not all are used illegally. Links R4 simply pwns..