I downloaded a software from the internet called Carbon Copy and used it to copy a hardrive from and 867 Dual Processor Mirror door. My goal was to copy the hardrive of course which i was able to do. I piggy backed the 2nd harddrive(blank) off the 1st HD ( Master with OS 10.4.3) I took the 2nd HD out and put it into a working 867 DP Mirror door and it booted just fine only issue is it doesnt read or acknowledge the Cdrom/Dvd RW. I go to "More about this Mac and look under "buring devices and it dosent show any thing at all. It reads no buring devices and dosent show along with the section that shows hard drives ???? Why dosent it show, where did it go ??