And we would be delighted to be able to help you but we have almost no idea about what you are asking for help with!!
First, please read this post and give us ALL the information requested there.
Second, to what "coupon code" are you referring? Where did you see it? What was it for?
Third, you posted a similar question re burning a DVD two years ago here. Did you follow the advice offered there? With what results? And what have you tried more recently to overcome the problem?
With a lot more information from you we, fellow-users, may be able to offere assistance to you.