DVD burning process not complete?

At Christmas came "The Helene Fischer Show - My Most Beautiful Moments on TV". I wanted to burn this show onto DVD. For this I downloaded it from a media library program from the Internet. I was able to burn the entire DVD once using Windows Media Player. My problem is that I would like to make another replacement DVD, but every subsequent burn fails. It burns up to 99% and then it breaks off. Then when I test the DVD on my laptop it runs until about halfway through the show and then it starts all over again. My DVD to burn is 4.7 GB and the show is just under 3.4 GB. What can I do? Should I buy DVDs that have more storage? What is confusing is that it worked the first time and then not again, always used the same DVDs and they are all new.

Get a proper burning program.

CD Burner XP. Is free and can be burned directly via Windows, is for the bin.

And just copy the 1st DVD.

Apparently it works if I read it correctly. Of course, the DVD should be the same size as the first.