Abstract: A multimedia optical disc including data area and index area is provided. The data area includes objects each of which includes video data. The index area includes sub-areas. Each sub-area includes addresses of objects selected from the objects in the data area, a flag indicating a random reproduction of the objects selected, and a number of repeats of the random reproduction.

Abstract: The characteristic of semiconductor devices is satisfactorily maintained because the planarization of a dielectric film of a semiconductor device is carried out at a lower flow temperature. In the case of a silicon dioxide film being a dielectric film, a network structure is composed of atoms of silicon which serve as a main constituent, and of atoms of oxygen which serve as a sub-constituent of a matrix of the dielectric film. These oxygen atoms are replaced by non-bridging constituents such as atoms of halogen including fluorine. This breaks a bridge, via an oxygen atom, between the silicon atoms, at a position where such a replacement takes place. In consequence, the viscosity of the dielectric film falls with the flow temperature. If, for example, part of the oxygen in a BPSG film is substituted by fluorine, this allows the dielectric film to flow at a lower temperature of 850.degree. C. The short channel effects can be suppressed.

Abstract: A motion detecting method and its apparatus are provided in which during a block matching procedure for detecting movement, error data in displacement between reference two-dimensional blocks and target two-dimensional blocks to be examined of a frame are calculated by a known manner and, in addition, a movement throughout the two-dimensional blocks is detected by summing up a series of the error data at each displacement point of the blocks and selecting the smallest of the error data sum.