Look in the registry in the path I posted above you're serial # will be there. But I don't think it's really necessary to buy the dvd plugin. You'll get a serial for the plugin that you'll enter unlocking the trial period on Vision. The links are just for a player not a converter- there are free players for mov like QuickTime so I definitely won't pay for one. You can always try emailing Nero and see what their response is on mov files but I don't you'll get a very helpful response.