A method wherein contents of DVDs may be restricted based upon purchased certificates is provided. Thanks to the methodology used to describe the circuit blocks and their functional models, the system and method allow to execute with a WS and an emulator subsystem, in a single integrated environment, both the functional simulation of the model of complex electronic circuit and the emulation of the electronic circuit itself. The munition may further include a fuze well disposed in the casing, the opening in the nose end leading into the fuze well; and a second seal disposed in the fuze well.