Putting custom music in Final Fantasy IV CC and extractin PAC0.bin and PAC1.bin files

[Algo922]

Hello, I'm new here. I've been trying to put custom music in FF4: the Complete Collection but I'm having trouble extracting Pac1.bin.I've been trying to find a tool to extract Pac1.bin but I have had no luck finding a tool. I'm a complete noob when it comes to extracting games in general so a step by step process would be very appreciative