#recording.memory_device  a storage device on which information (sounds or images) have been recorded
  supertype:  #memory_device__storage_device__storagedevice  a device that preserves information for retrieval
  subtype:  #compact_disk__compactdisk__compact_disc__compactdisc__CD  a recording that is smaller than a phonograph record; played back by a laser
     subtype:  #audio_CD__audio_compact_disc__audiocompactdisc  compact discs used to reproduce sound (voice and music)
     subtype:  #CD-R__compact_disc_recordable__CD-WO__compact_disc_write-once  a compact disc on which you can write only once and thereafter is read-only memory
     subtype:  #CD-ROM__compact_disc_read-only_memory  a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
  subtype:  #sound_recording__audio_recording  a recording of just the sound
     subtype:  #audiotape.tape_recording  a tape recording of sound
        subtype:  #digital_audiotape__digitalaudiotape__DAT  an audiotape recording of sound
     subtype:  #phonograph_record__phonograph_recording__record__disk__disc__platter  sound recording consisting of a disc with continuous grooves; formerly used to reproduce music by rotating while a phonograph needle tracked in the grooves
        subtype:  #LP__L-P  a long-playing phonograph record; designed to be played at 33.3 rpm
     subtype:  #soundtrack  sound recording on a narrow strip of a motion picture film
        subtype:  #dubbing  a new soundtrack that is added to a film
     subtype:  #talking_book__talkingbook  sound recording of someone reading a book; frequently used by blind people
  subtype:  #tape_recording__tape__taping  a recording made on magnetic tape; "the several recordings were combined on a master tape"
     subtype:  #audiotape.tape_recording  a tape recording of sound
     subtype:  #videotape.tape_recording  a video recording made on magnetic tape
  subtype:  #transcription  a recording (e.g., from broadcast to tape recording)
  subtype:  #video_recording  a recording of both the video and audio components
     subtype:  #videotape.tape_recording  a video recording made on magnetic tape

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