Disclosed herein is a process for preparing cured arylene sulfide polymers. An example implementation involves a playback device receiving data from a first network device and forwarding by the playback device, the data to a second network device while a battery level of a playback device is above a predefined threshold. The recording layer and the resin layer are continuously adhered over both the read only and recordingreproducing areas 31 and 32. The capacitor integrates the photocurrent over an integration period, while the circuitry reverses a flow direction of the photocurrent through the capacitor at twice the clock frequency.