dont know if this is the right place to ask but

[kenny43]

Basically when you extract the whole PDG, you'll get a folder, in that folder you'll find in the order as said there, a folder called sound, inside there's another called Bgm, and inside bgm (I don't remember aany decode, i found it inside the bgm folder itself) you will find the at3tool.exe and msvcr71.dll, of course, you must have already extracted the whole thing to find these.