Ultimate Boot CD

I checked out all faqs. The possible cause may be that my burning speed is high. B'coz i burned using windows default (inbuilt).

can this be the cause ???

Hi,
I downloaded ubcd v4.1.1 & burn correctly. But it is not booting. My boot priority is already set to dvd-rw.

Can anyone tell me that what could be the cause ??..

Thank you.