I have used Movie Edit Pro 2013 for several years to make DVDs of my vacations. Recently I purchased Magix Movie Studio 2023 Platinum to enhance my endeavors. Being familiar with the basic concept I quickly assembled my photos and sounds for my current vacay. Burning is the problem. I have tried several combinations of input but each time after the window says the burning process was successful when I put the DVD into my player I am always getting the same response. "Cannot Operate the Disc. Unknown Video". My computer tells me that my burner is working properly. I set the Encoder setting at "Standard DVD NTSC Widescreen. Disc Selection DVD. I have a Dell 8900 and use Firefox. If anyone can help me I would be sincerely grateful. I have use two different brand names of DVDs.