Clone dvd does not recognize dvd

i know you’ve probably got this question many times before but…my clone dvd is not recognizing my dvd…i am using dvd +r dl dvds…i have a brand new dell with windows vista…how do i fix this problem? thanks you very much

*the dvd brand i am using at verbatim

First what version is your clonedvd? You might have backup your registration and serial then uninstall your clonedvd. Also what kinda of burner do you have and what is it’s firmware? You provided us with a vague problem but little way in the detail of the hardware and software involved in the process. Also note give the exact message of what the error say or does will help to find a solution to the problem. We’ll start with those questions to find you an answer or solution.