A co-worker of mine edited a file in Premiere and Encoded with Adobe Media Encoder in MP4. He also just discovered that he can't use Premiere 2018 for authoring a BD disk. Can I use the files he created in DVD Architect 6? Here are the properties of the files.
Yes. Although the process will go more quickly and more smoothly if you import that MP4 into Vegas/Movie Studio and output from it a file optimized for BluRay.