TRACKING METHOD, RECORDING MEANS AND A RECORDER FOR AN OPTICAL DISC

摘要

When writing or reading with multiple spots the spots are positioned on a line. By using the outer two spots for tracking the remaining spots can be precisely positioned. When the line forms an angle with the writing direction a situation can be created where the modulator only needs to consider data already present in one adjacent track, not both adjacent tracks, leading to a reduction in complexity of the modulator.