A valve for supplying pressured air to vehicle air bags, includes a shuttle with a valving member having a precision polished seal surface that presses against a precision polished sealed-against housing lower surface of a housing that confines the shuttle to sliding left and right. When motion is present in the video sequence, this system and method identifies motion data. The average volumetric flow ratio of the pressurized feed gas to the final product gas during design operation and during turndown operation may be essentially equal. Having been so informed, the user may activate the selected option to control the corresponding vehicle function. To ensure that the marking of the film withstands any subsequent process steps, such as sterilization of the packaging, and is visually appealing, it is envisaged that the plastic film material be removed andor visibly changed in structure by laser.