According to one embodiment, a magnetic disk apparatus includes an RW channel with an internal memory for processing data to be readwritten fromto a magnetic disk, a transfer controller for controlling data transfer between a host apparatus and the RW channel, and a processor for controlling the RW channel and transfer controller. 1 m or below, a protrusion forming component is not added to the thin resin layer or the surface roughness of the thin metal layer is 0. The intelligent queue provides extended message storage, efficient journalling, interoperability with other intelligent queues, load balancing, once-only processing, as well as detailed message state information that tracks the status of each message from both the sender and the recipient’s perspective. Other compositions and applications of a dermis derived implant, and methods of manufacture and use, are disclosed.