A recording layer of an optical recording medium is made of a polymer film containing a polymer solid, such as polymethyl methacrylate, as a main ingredient. The conduction member is interposed between an outer peripheral portion of the probe card and an outer peripheral portion of the mounting table. A current image and a previous image of the region to be monitored are analyzed by an image processing module. The volume of filler and the interior volume remain substantially equal during compression so that delamination does not occur. The drink vessel holder has a flexible body member with an upper portion with a first top surface and a first bottom surface and a lower portion with a second top surface and a second bottom surface with an adhesive material disposed on the first bottom surface of the upper portion.