CIA stands for '''C'''TR '''I'''mportable '''A'''rchive. These files contain a compiled application which can be installed on CTR NAND, TWL NAND (part of the NAND used by DSi applications) and on the SD card. | CIA stands for '''C'''TR '''I'''mportable '''A'''rchive. These files contain a compiled application which can be installed on CTR NAND, TWL NAND (part of the NAND used by DSi applications) and on the SD card. |