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Question: Copying disc for the DZGX5020A

I just purchased this camcorder. I loved the idea of having a DVD to pop into the player. I wanted to make copies of the discs for family, and I can't figure out how to do this. When I finalize the disc and place it into my computer, it will play it. But when I try to burn a copy, it doesn't recognize the data. What am I doing wrong? Am I able to make copies?