Backup source of CD (No. 1)

• Backup list
• View the diff.
• View the diff current.
• View the diff for visual.
• View the backup.
• Go to CD.
  • 1 (2013-05-08 (Wed) 18:50:31)
  • 2 (2020-03-05 (Thu) 13:12:55)
  • 3 (2022-01-17 (Mon) 18:15:52)

TITLE: CD (Compact Disc)

- Explanation of 44.1 kHz CD sampling rate
--  http://www.cs.columbia.edu/~hgs/audio/44.1.html