Patent ID: 8715065

Claim:
A computer-implemented method comprising: detecting a request, via a wagering game machine, to change a denomination of a wagering game from a first denomination value to a second denomination value; based on the request to change the first denomination value to the second denomination value, determining that a copy of critical data for the wagering game is stored in a backing store for previous states of game play for the wagering game for only the second denomination value, wherein the critical data is to be stored in a non-volatile memory store on the wagering game machine for a given number of game plays when the wagering game is active, and wherein the copy of critical data is of a fixed memory size; accessing the copy of critical data for the wagering game from the backing store; and overwriting an entire contents of the non-volatile memory store for the wagering game machine with the copy of critical data so that the non-volatile memory store includes only the copy of critical data for only the wagering game, wherein the entire contents of the non-volatile memory store also is of the fixed memory size, wherein the overwriting comprises writing the critical data starting at a fixed memory address in the non-volatile memory store, and wherein the fixed memory address is a starting memory address for which all critical data overwrites begin for all wagering games activated on the wagering game machine.