Hi, this is my first post so please be kind. I'm a hardcore noob when it comes to this flashcart business etc, but apparently from what i've read, it's possible to download rom save files, input them into empty cartridges, and play them off of your Nintendo DS and/or Gameboy Advance. My question is, is it possible to overwrite a legit DS or Gameboy Advanced cartridge with a rom save file of the same game? So, if i have a Pokemon Emerald cartridge on my Gameboy Advance or DS for example, and i also have a Pokemon Emerald rom on my computer that i play with using an emulator, would it be possible to transfer the save file from the Pokemon Emerald rom on the computer to the Pokemon Emerald cartridge for my DS or GBA? Is there any type of flashcart or whatever kind of machine/mechanism to get this done? Because then i could have all the pokemon i want by getting them on my computer rom through gameshark cheats made available by the emulator, and then just transfer them to my real-life legit cartidges to make them look legit.