Currently, I've got two hard drives on separate IDEs in RAID 1 (D: drive) as masters and two optical drives as slaves. As such, it takes forever to burn anything off my D: drive. Usually, I copy the files from D: to C: before burning anything. I was wondering what kind of performance loss I would get if I were to put the two hard drives on the same channel and the optical drives on the other. I don't need to do any on-the-fly burning, so that's not an issue. Basically, is it a bad idea to do RAID off two hard drives connected to the same IDE cable?