I have created a file using Photostory Deluxe 2017. I have burned the file to DVD using several methods. I burned directly from Photostory (which took at least 3 hours - it is a 35 minute video.) I also saved an iso file twice (this took at least 4-5 hours) and burned that to DVD several times using the software Imgburn. I have used two different types of DVDs (not Bluray.) The file will play on my computer in Media Player, but when I put the DVDs into my DVD player, I get a message saying "Cannot play this disc. The video format of the disc does not meet required video output format of this product." And I have tried two DVD players without success. I have updated the Photostory software and burn routines. AND ... I just tried burning an old file using Photostory 2013 (still on my computer,) and it worked just fine. I am using Windows 10, 64 bit. I am using an external DVD burner. Any suggestions? Thank you!