As a Restoration artist, you know that line sync, or line jitter, is a very common problem with videotape. It's typically caused by the lack of (or disturbances with) line synchronization pulses which prevent the videotape recorder from locating the actual start and end of each line. This causes random line displacement (jitter). The most visible effect is that vertical edges appear to be jagged. The jitter can range from +/-1 pixel to more than +/-5 pixels in severe cases. DVO Line Sync automatically detects and corrects these line displacements as well as any stretching caused.