Problems Creating a Dvd


In Runtime
so im going to be leaving for a trip soon and its a 12 hr drive. so i need to get some form of entertainment to take with me. well, i downloaded some youtube videos and saved them as a mp4 format then used the program Dvd flick: DVD Flick (not advertising) to create a dvd with my saved youtube videos. well after trying 3 times (twice with the same disk and once with another) to create the video it just wont work. im not sure if you guys can help but id appreciate it if you could. my entertainment depends on you! thanks for your time