A publisher configured to record data on a medium by a first media drive and a second media drive and including a publisher controller and a publisher storage, the publisher controller being configured to detect a type of a medium on which data is recordable by the first media drive and detect a type of a medium on which data is recordable by the second media drive, the type of the medium on which data is recordable by the first media drive and the second media drive being defined as a recording target type, the type of a medium on which data is recordable by only any one of the first media drive and the second media drive being defined as a non-recording target type, and the publisher being configured to store target type information representing the recording target type and the non-recording target type.

A gramophone plate (P) having at least one face, the at least one face including at least one region on which is recorded audio data (2), wherein the said at least one region of the at least one face also has at least one visual image (7), or a portion of at least one visual image, recorded thereon.

A publisher configured to record data on a medium by a first media drive and a second media drive and including a publisher controller and a publisher storage, the publisher controller being configured to detect a type of a medium on which data is recordable by the first media drive and detect a type of a medium on which data is recordable by the second media drive, the type of the medium on which data is recordable by the first media drive and the second media drive being defined as a recording target type, the type of a medium on which data is recordable by only any one of the first media drive and the second media drive being defined as a non-recording target type, and the publisher being configured to store target type information representing the recording target type and the non-recording target type.

A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.

A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.

A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.