Let's break this issue down into 2 primary components, legal and technological

Flash movies are audio visual works. The same as videos, movies, etc. A Work is protected by federal copyright once it is in "tangible form." Which means, once the video is created, it is protected.A. Copyright RegistrationRegistering your video is a VERY good idea. Registration is not required for copyright protection, however registration of a work with the Copyright Office is sovereign prima facie evidence that the work is original and is owned by the registrant of the copyrighted work. Pursuant USC Title 17 flv compatible player Section 106a, copyright registration is a prerequisite for bringing any copyright infringement lawsuit or action. A copyright owner cannot proceed with a copyright infringement lawsuit unless the work has been registered with the LOC.B. Copyright NoticeCopyright notice is always a good idea. It lets the viewers know, without ANY doubt, that the video is owned, and controlled, by you. I'm a big fan of "slugs." A slug is the text at the bottom of the screen that portrays various types of information.