Hello, I'm trying to edit the sound_data.sdat of Pokémon Diamond with NDS editor 0.1, but I'm having a huge problem. When I try to open a file with NDS editor (no matter if it's a .nds, a .sdat, etc) the program says: "Could not open file. Unsupported file format". I can't open anything with it, and I need it to replace some internal files of the game. What's the problem? PD: I have tried the program under XP and Seven.