My first effort with clonedvd (longtime user of AnyDVD and DvdShrink) gave me a coaster. The whole process took about 2 hours. Clone DVD said the burn was successful. The burned dvd is blank. I have no idea where to begin, to trouble shoot this. DVDShrink couldn't do the Guardian...first dvd it hasn't been able to handle, so I dl'd CloneDVD. Any help?