Question: In 2004 how many CDs had been sold around the world?
Answer: 2004

Question: What percent decrease did audio CD sales experience?
Answer: 50%

Question: What has caused a decrease in CD sales?
Answer: other forms of digital storage and distribution

Question: In 2004 how many CDs had been sold around the world?
Answer: 30 billion

Question: How many CDs had been distrubuted around the world by 2007?
Answer: 200 billion

Question: What has caused a decrease in CD sales?
Answer: other forms of digital storage

Question: Who created Compact Disc prototypes in the 1970s?
Answer: Philips and Sony

Question: How lond did the creation of Red Book CD-DA standard take?
Answer: a year

Question: To what does the compact disc owe its prosperity?
Answer: the cooperation between Philips and Sony

Question: How many CD players were sold in the United States in their first year?
Answer: 400,000

Question: What did the CD evolve from?
Answer: LaserDisc

Question: What made it possible for CDs to be played on any companies CD player?
Answer: unified design

Question: What year did CD players become available for purchase?
Answer: 1982

Question: To what does the compact disc owe its prosperity?
Answer: cooperation between Philips and Sony

Question: In what year did Philips institute a laboratory to create a digital audio disc?
Answer: 1977

Question: What was the proposed diameter for the original compact disc?
Answer: 11.5 cm

Question: What year did Philips propse the idea of a digital audio format?
Answer: 1974

Question: Who was the director of the Philips audio division in 1974?
Answer: L. Ottens

Question: Where was the 62nd AES Convention held?
Answer: Brussels

Question: Who was the general manger of Sony's audio department in 1971?
Answer: Heitaro Nakajima

Question: What year did Sony first exhibit the use of an optical digital audio disc?
Answer: 1976

Question: What did Nakajima's team use to create a digital PCM adaptor audio tape recorder?
Answer: a Betamax video recorder

Question: Where was the Philips Introduce Compact disc conference held?
Answer: Eindhoven, Netherlands

Question: What did Nakajima's team use to create a digital PCM adaptor audio tape recorder?
Answer: Betamax video recorder

Question: When did Sony release it's AES technical paper?
Answer: 1 March 1979

Question: In what year did Sony and Philips band together to design a new digital audio disc?
Answer: 1979

Question: What year was the Red Book CD-DA standard released?
Answer: 1980

Question: When did the IEC isntigate the Red Book CD-DA as an international standard?
Answer: 1987

Question: Who headed the 1979 Sony and Philips digital audio disc task force?
Answer: Kees Schouhamer Immink and Toshitada Doi

Question: Who first sold a million copies on CD?
Answer: Dire Straits

Question: Which artist was the first to have their full catalogue converted to CD?
Answer: David Bowie

Question: What year was the Dire Straits album Brothers in Arms released?
Answer: 1985

Question: How many studio albums did David Bowie release in February 1985?
Answer: 15

Question: How many CDs were mass produced in 1988?
Answer: 400 million

Question: What does ROM stand for?
Answer: read-only memory

Question: What year did Sony and Philips release CD-Recordable?
Answer: 1990

Question: What was the original intended format for CDs?
Answer: musical format

Question: What year was the 73rd AES Convention?
Answer: 1983

Question: What was the CDs predecessor?
Answer: the gramophone record

Question: What was the CDs predecessor?
Answer: gramophone record

Question: When did CD sales experience their original decline?
Answer: the 2000s

Question: What portion of music sales did CDs and DVDs account for in the United States as of 2012?
Answer: 34 percent

Question: Which country attributes over 80 percent of its music sales to physical formats?
Answer: Japan

Question: How are MP3s compressed?
Answer: lossily-compressed

Question: When did CD sales experience their original decline?
Answer: 2000s

Question: What has caused a decrease in CD sales?
Answer: Internet-based distribution of files

Question: How are CDs mass produced?
Answer: hydraulic press

Question: What type of material is used to make CDs?
Answer: raw polycarbonate plastic

Question: What size is the diameter of the center hole in a CD?
Answer: 15 mm

Question: How long does it take to stamp out one CD?
Answer: two to three seconds

Question: What is the term for the center hole in a CD?
Answer: stacking ring

Question: What materials can be used to make the reflective layer on a CD?
Answer: usually aluminium, but sometimes gold or other metal

Question: What type of light is used to cure CDs?
Answer: UV

Question: What is a glass master?
Answer: positive image of the desired CD surface

Question: How are glass masters created?
Answer: high-powered laser

Question: What is the term for a negative image of the glass master?
Answer: die

Question: How is the positive image on a CD protected? 
Answer: lacquer

Question: How is lacquer distrubted on a CD?
Answer: rapid spinning

Question: What is the priciest component of a CD?
Answer: jewel case

Question: Why did the cost of audio music increase when the production costs decreased?
Answer: value increased

Question: What did CDs retail for in 1995?
Answer: $16.98

Question: Who received the most profit from the sale of CDs?
Answer: the store

Question: How much did a jewel case cost in 1995?
Answer: 30 cents

Question: How long are CDs expected to last?
Answer: 20 to 100 years

Question: What can cause sudden disc degradation?
Answer: disc rot

Question: Are CDs meant for permanent or temporary use?
Answer: permanent

Question: What does SCMS stand for?
Answer: Serial Copy Management System

Question: What does DRM stand for?
Answer: digital rights management

Question: What does AHRA stand for?
Answer: Audio Home Recording Act

Question: What type of CD is intended to be used in a Consumer audio CD Recorder?
Answer: ReWritable Audio CD

Question: Which is less expensive, the ReWritable Audio CD or a CD-RW?
Answer: CD-RW

Question: How fast could the first ReWritable CD be written?
Answer: 4x speed

Question: Which CD has writing speeds betwen 4x and 12x?
Answer: High Speed ReWritable CD

Question: How fast can Ultra Speed+ CDs write?
Answer: 32x

Question: How fast can Ultra Speed CDs write?
Answer: 16x to 24x

Question: Where is the semiconductor laser found in a CD player?
Answer: on a swing arm

Question: What wavelenght is used to pull data from a CD?
Answer: 780 nm

Question: What is used to discern the change of intensity in light on a CD?
Answer: photodiode

Question: In what pattern is data stored on a CD?
Answer: spiral

Question: What createds the change in light reflected off of a CD?
Answer: change in height between pits and lands

Question: What type of result from a CD will return a one?
Answer: change from pit to land or land to pit

Question: Where can one find the encoding techniques for CDs?
Answer: Red Book

Question: What type of encoding do CDs implement?
Answer: non-return-to-zero

Question: What type of modulation is implemented when a disc is mastered?
Answer: eight-to-fourteen

Question: Where can one expect to find damage on a disc?
Answer: label side of the disc

Question: How are scratches on a CD fixed?
Answer: refilling them with similar refractive plastic or by careful polishing

Question: What eats at the plastic and aluminum found in CDs?
Answer: fungus Geotrichum candidum

Question: Where does the fungus Geotrichum candidum originate from?
Answer: Belize

Question: Where is the start of data on a CD?
Answer: the center

Question: What size CD is most frequently used?
Answer: 120 millimetres (4.7 in)

Question: What is the size of a Mini CD?
Answer: Eighty-millimeter

Question: What is the size of a Maxi Single?
Answer: 120 mm

Question: Who was the Sony Executive in 1980?
Answer: Norio Ohga