Unable to use Video in Cyberlink Powerdirector Video Editor

I just started a subscription to Elements and downloaded some videos. When I try to load them into the video editor (Cyberlink Powerdirector), I get an error message that says there is an error due to several reasons including protected video contact, which I think is the issue. Is there something embedded in the videos that an editor would look for? For reference, when I download the same video as a preview with a watermark, the editor loads them fine.