Hi Christian. A capture device, such as your tv-tuner, is sufficient. It has to be at least video-for-windows compatible. You can capture with the JMStudio (File->Capture), which is part of the JMF-Installation or you write your own application. In that case you have to create a DataSource, a Player/Processor and save the Data to a DataSink. Have fun, Reza Nazarian.