copyright
Is dubbing a YouTube video in another language illegal?
<p>If I download a YouTube video, dub it in another language, and reupload it on YouTube, can I be prosecuted by law (or can YouTube remove my video) for  infringement?</p>

<p>Yes, assuming the material was given the standard license. You would be creating a derivative work, and only the copyright owner has the right to authorize creation of a derivative work. See the copyright <a href="https://law.meta.stackexchange.com/a/544/4501">FAQ</a> for general information. The owner can file a DMCA takedown notice with YouTube and they will by policy notify you of the infringement claim and unless you file a counter-notice (you legally couldn't given the facts you're asserting), they will take it down. The owner can also sue you.</p>

<p>Yes.   Unless you have the permission of the copyright holder, you are making an infringing copy of their work.   A similar question - with work-arrounds is available <a href="https://webapps.stackexchange.com/questions/17471/add-subtitles-to-a-video-of-another-user-on-youtube">here</a>.</p>
