Am I basting a turkey or getting back from vacation?

[jody858]

I'm curious about a rar I put together today. When it was finished, I had a cdi and 2 executable files, unpack and inject. I'm not the dumbest dude on the planet, but I was wondering what the purpose of this process was all about. It seemed to create some wav files when I ran unpack.exe, then injected them into the cdi when I ran inject.exe, lucky guess I suppose. It was so nice as to delete the pesky wav files when it finished. I understand that the process is required for the cdi to burn correctly, I just wanna know why. Call it my need to know.