Once an event has been selected as interesting by the trigger, information about the event is read out by all the subdetectors individually. This isn't, however, the end of the story. Once the event is read out, the information from each subdetector is combined and passed into the filter [33], at which point, typically 15-35% of the selected events are rejected. Selected events are then passed to ROPE (Reconstruction of OPal Events) [34], which reconstructs the individual events using calibration constants from individual subdetectors. Information about reconstructed events is written to an optical disk as a Data Summary Table (DST). This DST is then stored on tape and disk so that it can be used in analysis.