Uhh, you don't store data on a RamDisk, you store an instance of a program so you can execute it fast. You save any data to a hard disk. For instance, a 32bit game can only use 2GB of memory. The game is 6GB large, so when you are loading a new cell or level, it has to clear the previous 1 GB of data currently in memory and load 1GB from the hard disk at 100MB/s. So you are looking at a 10 second load in this scenario. With RamDisk, you can load the entire program into memory so it takes a fraction of a second to load a new level. Going into 64-bit apps, loading in large amounts of data from a large program can take a hile, and this will speed it up significantly.