A method for recording and replaying operations in a computer environment utilizes initial conditions of the computer environment at the start of a recording to configure a replay computer environment during replay. The memory device employs a virtual paging scheme that allows the memory to have an efficient Flash internal structure, while logically re-mapping this architecture externally to a compatible virtual SDRAM architecture. The first leaf also has at least two hollow first leaf knuckles that are unitary with both the first layer and the second layer.