The operating manual for the Digicassette (or Portable Braille Recorder--PBR), an electronic braille reading and writing machine and an audiotape recorder which is compact and easy to carry around, is presented. Following a preface and an introduction are sections which address the following topics: orientation to parts and functions of the Digicassette; playback or reading a Braille tape; recording (writing) braille; audio recording and playback; alternating braille and sound; machine maintenance; when things go wrong; teaching children to use the Digicassette; the Digicassette and external devices (calculator, typewriter, computer, deaf/blind communication, and copying braille cassettes); and transcriber guidelines. (SB)