Disclosed is a folding split seat which is easy to move from a seating position to a cargo position and back and which accomplishes this by moving the seat cushion forward and downward out of the way of the folded seat back without the need to fold or flip the seat cushion. A graphical user interface is provided that includes a tree structure of GUI components. The probes are useful in methods of desorbing analytes from the probe surface. The recordingreproducing apparatus includes a detection device for detecting the wobbled signal from the groove and a detection device for detecting pit signals from the pits. The hold down fingers are all individually adjustable so that the double hold-down have two adjustment screws which can be individually operated causing flexing of the bridge between the double fingers. If the 3G data stream includes invalid data, a step of marking the invalid data according to a predetermined protocol is performed.