OK check this out.
Got the CD drives working but now what started happening is my computer would work fine for a while then it would start freezing up for about 30 seconds every couple of minutes. I noticed that when it started freezing, the cd drive would then stop working again - light would come on, door not open, not recognized. Being the superstitious type, I thought they might be related so I disconnected the cable to the CD drives, and lo and behold, my computer stopped freezing up. It looks like something having to do with the drives was causing the freezing?