A method for providing a user of a telephone device with a capability to use Internet-based applications. In some system embodiments, the apparatus can be retrofitted to existing small diameter wells. After identifying the endpoint of the electropolish, chemical etching of the copper in a H2SO4 or H3PO4 solution is continued, in this manner avoiding effects of high current density introduced by pattern density. The amplitude of the signal which is obtained by increasing the the amplitude of the FE signal whose amplitude is adjusted by approximately 6 dB is applied to the amplitude of the focus error signal in the rewritable data zone.