 Magnetic tape recording as we know it today was developed in Germany during the 1930s at BASF (then part of the chemical giant IG Farben) and AEG in cooperation with the state radio RRG.This was based on Fritz Pfleumer's 1928 invention of paper tape with oxide powder lacquered to it.The first practical tape recorder from AEG was the Magnetophon K1, demonstrated in Germany in 1935. of AEG built the recorders and developed a ring-shaped recording and playback head.