The easiest way to make copies of your MiniDV tapes is to import them into your computer using Windows Movie Maker, follow the steps in the software required to import the tapes. Once you have the tape imported, simply choose the Make Movie option and save to MiniDV tape, making sure you have a new tape in the camcorder before you save. The software will write the video back to the second tape giving you a copy of the video on the new tape.