help me DVD

I have a DVD Burn I have some DVD movies on DVD that are a couple years old I am haven't problems trying to burn them and finding out the problem is the DVD them self is their any kind of a solution I can put on the DVD that will help to burn them I know there are some solutions out there that I tried to and they do not work may be someone might know of a good solution that I can use any help will be appreciated thank-you can not install my ibm viavoice it need jrew.exe Can some one tell me where to get that

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