A system and method for a predriver and driver interface having scalable output drive capability with corresponding scalable power is disclosed. The self-test controller is associated with a memory array that includes a clock having a clock speed. of erodent to cause a thickness loss of about 15-20 microns; an erosion volume loss value of about 1. In some embodiments the Satellite Unit obtains media date through its associated Main Unit, whereas in other embodiments the Satellite Unit obtains media data directly from the Server.