while loading

Hi!
I've downloaded Windows Vista from Microsoft Site, burned the ISO file into a DVD+R, installed Windows Vista by oppening the DVD installation, and ok. When Windows restarts, it asks what O.S. I want to open: Windows Versions Early or Windows Setup. I choose Setup, and ok... Windows Vista starts loading: into a black screen, there's a loading bar that seems to be black and white, and finnally the Windows copyright sentence. Ok.
The problem's that the loading stops in 15/20 seconds, and I can't understand why. I've tried to choose the "Show what drivers are loaded" into the F8 menu, and I can see again that loading stops. It stops while loading the /disc.sys driver, but I can't understand why...
I've tried to install Windows Vista by mounting a Virtual driver, and the error happens again... So, I think that the problem is on this driver.
Can anyone help me?
Thanks a lot.

Hi!
I've downloaded Windows Vista from Microsoft Site, burned the ISO file into a DVD+R, installed Windows Vista by oppening the DVD installation, and ok. When Windows restarts, it asks what O.S. I want to open: Windows Versions Early or Windows Setup. I choose Setup, and ok... Windows Vista starts loading: into a black screen, there's a loading bar that seems to be black and white, and finnally the Windows copyright sentence. Ok.
The problem's that the loading stops in 15/20 seconds, and I can't understand why. I've tried to choose the "Show what drivers are loaded" into the F8 menu, and I can see again that loading stops. It stops while loading the /disc.sys driver, but I can't understand why...
I've tried to install Windows Vista by mounting a Virtual driver, and the error happens again... So, I think that the problem is on this driver.
Can anyone help me?
Thanks a lot.