The number of seismic stations has increased rapidly over recent years leading to an even greater increase in the amount of seismic data. The increase is partly due to the general change of recording and storing of continuous data. This requires more processing and good organization of the data. It is very easy to sell new networks and usually some kind of processing software is thrown into the deal with some training. Some manufacturers’ software tend to mostly work only with data from their equipment although there is now a trend for standardizing recoding formats. Thus most observatories also have a need for other processing systems than the one coming with the equipment.