A mold for producing a ceramic heat shield element having a mold shell is provided. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. The plastic substrate includes at least three plastic mirror clips having at least one shoulder of plastic mirror clip that has a distance from the second surface so that no or almost no stress disturbs the reflective surface. At the time of reproducing, the reproduction control portion 35 controls the reproduction selector switch 36 to obtain the video data from the first storage portion 32 or the second storage portion 33, changing the reproduction mode from ordinary to the rapid forwardingreversing and vice versa. The number of turbine blades in the at least one row and the rotational speed are such that the following formula holds true for the at least one row of the fan drive turbine: 60\u22675500 Hz. This composition comprises a solvent and an anthracene skeleton-containing polymer having a hydrophilic group.