Dividing by 1048576 ?? Well, trimming is not compressing. A trimmer removes padded data, because cartridges' size are power of 2 (8M, 16M, 32M, 64M, 128M, 256M, 512M, 1024M, 2048M and so on...). if a game is 33M big, you have to put it on a 64M cartridge, and for such a game, the gain will be...