A method and system for leaking routes between routing engines in a communication network. The magnetic recording medium also has a ROM area having a pattern area in which first-type segment sequence of magnetically rewritable magnetic segments and magnetically non-rewritable nonmagnetic segments is fixedly recorded as first-type modulation information. Therefore, the present invention can prevent introduction of the conductive material into the base layer in a subsequent process. In this case, a controller section controls a pattern in reading the divisional data by the image output IF and structures a reproduced image by means of various reproducing speeds by this reading pattern. After the endplates and core are selected, the intervertebral disc prosthesis is assembled with the selected core positioned between the selected endplates. Material is dispensed by the melting electrode to the workpiece while an electronically controlled electrical short circuit is formed.