I have an LG DVD+/-RW drive, and a Memorex DVD/CD-RW drive. I need to reinstall Windows XP on an old computer, but for some reason when I try to boot the XP CD, it doesn't detect and loads straight from the HDD. I know the CD drives are good, and the Windows XP CD, as I can use both to read the Windows XP CD inside of Windows. I've set the BIOS to boot from only the optical drives, but when I do that, it says System disk failure, so I can't load anything. Any suggestions?