A recent innovation in providing information on Schutzhund training is the development of videos and DVDs. As with books, all videos and DVDs are not created equal. Viewers must exercise discretion when considering the techniques shown in videos. Just because a technique appears in a video (or book) does not mean that it is a good idea or that many Schutzhund trainers use it. There is a diversity of opinion on how to train Schutzhund dogs. This is reflected in the many conflicting opinions presented in the various videos.