sentences:  ProDigi
  
  Mitsubishi's ProDigi was a professional audio, reel-to-reel, digital audio tape format with a stationary head position, similar to Sony's Digital Audio Stationary Head, which competed against ProDigi when the format was available in the mid-1980s through the early 1990s.Audio was digitally recorded linearly on the tape and is guarded by a powerful error correction scheme of cyclic redundancy checks to ensure integrity of the signal even if data is lost during playback.