Binary file in C#

[Jeorge535]

Thanks for the responses. I'm attempting to build a level editor for Yoshi's Island: Super Mario Advance 3 for the GBA. I'm already familiar with how the game stores the data. I just need to figure out how to load and store the .GBA ROM file in the program itself for editing - the most important part . Xander's method sounds the most likely, so I'll give it a try.