A user equipment for alleviating barred access while reselecting from a first cell to a second cell in a mobile communication system is provided. The photoresists in some embodiments comprise a fluorine-containing copolymer derived from at least one polycyclic ethylenically unsaturated compound and at least one compound having at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and at least one photoactive component. This optical recording medium master disc apparatus includes an external synchronizing mechanism to vary the resonator length of this ultrashort wave pulse laser to mode-lock the repetitive frequency of the ultrashort wave pulse laser in synchronism with the clock frequency to cause the ultrashort wave pulse laser to emit pulses, and hence miniscule pits can be formed with high accuracy. A tracking process is then performed when the at least one satellite is acquired in the at least one search process.