You can combine these methods by copy-protecting the poster or decoy movie as well. Add your logo to the movie and include a live link back to your website. QuickTime makes it easy to do both. Every copy becomes free advertising. If every copy of your rock video is a clickable link to buy the CD. . .
People love to copy things.
Use viral marketing to make this force of nature your friend. Ahem, that said. . . They can then use the plug-in to copy your movie from their Web page. In fact, all QuickTime applications, including QuickTime Player and Plug-in Helper, recognize this setting, and will not copy or save the movie once it is set. You cannot edit and save the movie afterward.