Artistic effects added to a video production in order to enhance the production by creating drama, enhancing the mood or furthering the story. Special effects may vary from the limited addition of patterns or the mixing of several video images together, to sophisticated digital effects such as picture compression, page flipping, and three-dimensional effects. Special effects are usually created using SEGs such as those included in the Video Equalizer, Video TitleMaker 2000, and Digital Video Mixer.