Editing+FLV+files

You may not wish you include an entire downloaded video in your Prezi. To edit FLV videos, you need to use an FLV editor. I've not located a useful free editor, though there are some free ones out there. Be careful about trying to use trial versions; these sometimes put ugly watermarks on edited video.

The video editor I'm using now is iSkysoft Video Converter, which goes for $35 (for both Mac and PC). This editor is easy to use and easy to install.