So I am trying to format a Vista laptop and replace it with Windows 7 ultimate. The problem is, the rom will not read the OS disc. It Will read other disc's though. When I try to boot from CD message pops up and says No Boot Devise found. When I look at it on my desktop it says the disc is blank. It works in my other Windows 7 machine but not the Vista one. I also tried it on a Windows 8 machine and had the same problem. Any help would be appreciated I am very frustrated. Thank You!