It is an infringement to sell his works without the permission of the copyright owner, which may lead to legal disputes and responsibilities. Violation of copyright law may have serious legal consequences, including fines and damages.
If you are interested in selling videos, it is very important to ensure that there are no copyright issues in the videos. You can buy or obtain legally authorized video content, so that you can legally sell and distribute these videos. In addition, if you have your own original video, you can protect your rights by copyright registration in an appropriate way.