Generate a question with a factual answer.
Generated: What was used in first recordings of vinyl records?

Generate a question with a factual answer.
Generated: What does the abbreviation "NDRM" represent?

Generate a question with a factual answer.
Generated: What was damaged but cleaned and then conserved?

Generate a question with a factual answer.
Generated: In U.S. dollars, how much was the enormous loss Sony reported the month before Kutaragi's retirement announcement?