A cutting tool assembly having a holder block mounting scheme which effectively and accurately positions the cutting tip point at its designed angle of attack. A scanning section scans the laser beam relative to the optical disk. The invention helps to improve the quality of LBAW filter passbands. Finger electrode extends in direction y orthogonal to direction x in which wiring material extends. The other videos are prepared incrementally based on the prediction set, so that the user is able to access and view the videos. The priorities depend at least on access frequencies of the DMMs.