A method for fast activation and playing of multimedia data with a non-fixed data storage media, such as compact disk, is provided. According to one method, the method includes decomposing a virtual environment scene containing a plurality of sound sources into a plurality of partitions and forming a plurality of source group clusters, wherein each of the source group clusters includes two or more of the sound sources located within a common partition. Further, the data and execution results of the processing activity are also accessed and manipulated by the processor entirely within the internal register file. The first check valve prevents the second liquid from entering back into the second chamber when the plunger is moved back into the first position.