This present invention relates to a double-layered cup structure for an adhesively attachable strapless, backless bra comprising an exterior form and an interior pad that are both removable and replaceable. In one implementation, a set of random integers is selected, wherein the set comprises at least one integer selected randomly. Management information on programs chains, which are combinations of programs to be reproduced one after another, has been written in a video title set PGC table. In addition, transactions which occur at a variety of sites may be transmitted to a remote station which then forwards the information about the transactions to the user’s receiver.