Question

Which of Beethoven's works was used to determine the storage capacity of CDs

a) Symphony No. 5
b) Symphony No. 7
c) Symphony No. 9 (Choral)
d) Moonlight Sonata

Answer 1

The storage capacity of CDs was determined by Beethoven's Symphony No. 9 (Choral), to hold its entire duration at various tempos, leading to the standard CD length of 74 minutes.

Step-by-step explanation:

The storage capacity of CDs was famously influenced by Beethoven's Symphony No. 9 (Choral). A story often told is that Norio Ohga, then vice president of Sony and a trained opera singer, insisted that a CD should be able to contain the entire ninth symphony at any tempo. Consequently, the CD was engineered to have a capacity of 74 minutes, which was sufficient for most recordings of the ninth symphony at the time. The correct answer is Symphony No. 9 (Choral). Beethoven's Symphony No. 9 was used as the reference for determining the storage capacity of CDs. The storage capacity of CDs was determined by Beethoven's Symphony No. 9 (Choral), to hold its entire duration at various tempos, leading to the standard CD length of 74 minutes.