Hi, I am connect two CD drives to my MSI k8n neo2 plat. mobo. I have already connected the 2 IDE cables to the mobo, and the two power cords to the power supply. Is this all that need to be plugged in? The drives came with a smaller cord for each one. I think that they are sound cords, or something. What are they called? And do they need to be plugged in? Do I need a sound card to plug them into? It would be highly appreciated if you could explain in easy terms for a noob like myself. THANKS!!