If you are looking for a disc that holds more storage and produces high-quality video, then DVD-9 is your choice. But if you are looking for a cheaper disc that also has good features like other discs, then DVD-5 should be your right choice.
However, with that having said, if you use DVD-9, mind you, you will not be able to rewrite the disc. But with DVD-5, it is very much possible.
If you want to copy a movie, DVD-9 is your go-to. But again, you can also copy the same movie on two DVD-5 discs, which is way cheaper.
As mentioned, it is up to you to decide which disc is right for your convenience. Now that everything is clearly mentioned above, we hope this article will help you choose the suitable DVD for your PC and how to make a backup copy of it.