A base mechanism for use in a multi-chip module is described. The content may be communicated in response to receiving the content request. In the anisotropic conductive sheet in which conductive members are scattered in a nonconductive matrix, the conductive members penetrate through the sheet in the direction of thickness and conductive auxiliary layers are in contact with the conductive members. An averaged roll characteristic is determined for movement of the boring tool along the path segment. The audio and video content are stored in digitized files on the multimedia server for distribution throughout the site via the network.