Motion compensation for video compression using a \u201cflowfield\u201d comprising a per-pixel field of motion vectors and confidence values. A second device bridge to communicate a second stream of information between a second Serial ATA bus and the storage device bus. The storage apparatus defined with a pair relationship creates a virtuallogical device identifier set of a mirrored image relationship by replacing its own reallogical device identifier and using it as its own virtuallogical device identifier. The positioning body is passed through the through hole of the plate body and is adjusted between a first position and a second position. The heterocyclic aromatic oxazole compound and pharmaceutically acceptable salts thereof have antipyretic action, analgesic action, anti-inflammatory action, and particularly, selective inhibitory action on cyclooxygenase-2, and are expected to be useful as anti-inflammatory agents with less side-effects such as digestive tract disorders.