A magnetic recording medium having a substrate and a SiO2-containing magnetic layer comprising grains is disclosed. The dilator includes a proximal end, a distal end, and a center portion positioned between the proximal end and the distal end. The circuit is configurable to receive bank address signals, a second number of chip-select signals, and rowcolumn address signals from the computer system. Simultaneously, the feed stream is moved through the contactor in the same direction as the regeneration stream. The composition for a friction material according to the present invention comprises a fibrous substrate, a binder and a filler, wherein the fibrous substrate comprises at least two types of biosoluble ceramic fibers having different fiber lengths. Casinos can adjust return in several ways, including rule variations, set-up, table limit bets, and pay-outs.