Abstract: A brain wave monitoring system includes an electronic device and at least one electroencephalograph connected to the electronic device, each electroencephalograph includes 8 channels respectively connected to a corresponding electrode for receiving a brain wave signal. The electronic device scans a number of the at least one electroencephalograph and sequentially displays multiple channels of the at least one electroencephalograph according to an identifier of each of the at least one electroencephalograph. The brain wave monitoring system can automatically detect the number of electroencephalographs connected to the electronic device, and display the brain wave signals of all channels of all electroencephalographs according to the number of electroencephalographs and 8 channels of each electroencephalograph. The brain wave monitoring system can also prompt a guide message according to a channel impedance value and a signal quality index to assist a user improving a quality of the brain wave.

Abstract: A recordable/rewritable optical disc is defined with a lead-in section, a data zone and a lead-out section. The data zone is further defined with a plurality of recording unit blocks, each of which includes a physical cluster for recording data therein and a linking area for recording therein address information linking to the data, wherein the address information of a recording unit block is further recorded in a linking area of another recording unit block.