Ok, I may have a possible solution... Or rather cause. I was building a computer for a friend, had a couple Sata HDD's, and a single IDE DVD-RW drive. I had this same issue, and was unable to force it to work, until I suspected that BIOS was the issue. I had not a Disk drive at that time to Flash the bios, so I made the DVD a slave drive (Also try moving it to IDE 1 as Cable Select if supported). It read the drive perfectly after that.
I do not know if it's the same issue, so give this a shot, and also try upgrading your BIOS to latest. His MB did not like having a master drive as SATA, and anything on IDE as master.
I do not know if it's the same issue, so give this a shot, and also try upgrading your BIOS to latest. His MB did not like having a master drive as SATA, and anything on IDE as master.