Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. The clip comprises a head piece and an anchoring foot, which may be inserted in an opening in the support piece and an upper part, for fixing to the trim plate, which may be connected to the head piece in a snap-fastening manner. According to a method for manufacturing a multilayered disk and a method for removing an interlayer interference using the disk in the present invention, it is possible to design and manufacture a multilayered disk within a reflective signal range. An unavailability of a first storage cluster is detected when the second storage cluster is available. The undersurface of the flange retains the indicator at the lower neck region after the indicator passes over the flange. An air pump is connected to the intake to shoot air from the outlet towards one of the dies.