A moisture-absorbent unit capable of sufficiently restricting condensation inside a semi-sealed container that can be miniaturized and whose interior is at a comparatively high humidity, when this semi-sealed container undergoes a sharp temperature drop from being placed in a low-temperature environment, and to provide a semi-sealed container having the moisture-absorbent unit. The moving components include a lockunlock lever, a latch retract lever and a spindle hub. The mode control module determines a detection number dynamically according to the availability of the system resources andor the status of the scalable video format conversion system. The third pads and the fourth pad are disposed on the first surface of the body. Preferably, the block index is from about 0. Further mechanisms are provided to determine validity of data stored in the logic storing and dividing device.