More information needed if we're going to help you.
Is Pacific Fighters a game or a movie? If a game, is it on a cd or a dvd? What copy protection is used? (Scan with A-Ray scanner and report back.) What burner/s and other cd/dvd rom/s do you have?
[Note: Whilst discjuggler is an outstanding general mastering application that can cope with some copy protections, it certainly can't cope with all of the common ones and it is far from being an application for beginners in any case.]