Disclaimers like “this video is not owned” and that “no copyright infringement is intended” have zero legal validity. It used to be that copyright was only enforced against commercial copyright infringement. But we’re living in copyright crazy times.
In most of the world, any video (music, painting, movie, story poem etc.) that is created is automatically locked into copyright by the videographer/maker.
The reason Lawrence Lessig calls ours “permission culture” is because when you copy ANYTHING under such copyright law without getting permission from the copyright holder (who may not be the creator) you are committing copyright infringement.
Copyright infringement used to be a purely civil matter, but as it is “strengthened,” not only is it becoming harder to tell what is infringement, it is becoming criminalized, which means anyone– from school kids to grandparents — needs to be aware of this in self defence.
Since everything starts out copyrighted, sharing it is copyright infringement, which is illegal most places– unless it is in the public domain or it is licensed to share with a free culture license like Creative Commons.
If you want people to share your story, poem, song, picture, video etc. here is the Creative Commons tool to select the license *you* want.