Trying to screen record a streaming movie but get only audio with a black screen. What am i doing wrong?

Also is there a way to remove the overlay message/s that whoever uploaded the movie puts advertising logos or other items.

Hello, I am trying to convert a 12GB 2160p mkv movie file to a Dual layer DVD NTSC format. Every time I add the file it does not show any video, and states no video. I would appreciate any help on what to do to successfully do this and then burn it onto a dual layer DVD.

Thank you and have a great day.

Hi , I purchased Movavi Effects unlimited pack . I have downloaded blogging pack but its not working.At the time of running its asking for permission for acceblity , please guide