Changes

'''JSys''' is Nintendo's in-house framework they used to make Wii and GameCube games. This includes code for things like SZS file compression. It probably also has code to handle BMG (Binary Message)? files. JSys is used in most first-party games.

'''JSys''' is Nintendo's in-house framework they use to make their games, including GameCube, Wii, and probably other consoles such as the 3DS. It probably has support for the SZS (aka Yaz0) compression format, and BMG and MSBT message files. JSys is used in most first-party developed games.