Question: What was the significance of October 26th, 1956?
Answer: The last Columbia Records reissue of any Frank Sinatra songs on a 10-inch LP

Question: In which country did the 10 in LP exist the longest?
Answer: United Kingdom

Question: Which format offered up to 1/2 an hour of recordings per side?
Answer: 12-inch LP

Question: Did the 45 rpm or 12 inch disc offer longer playing time?
Answer: 12-inch LP

Question: What do the initials EP stand for?
Answer: extended play

Question: Why were 45s more popular with jukeboxes?
Answer: The large center hole

Question: What format was phased out by the end of the 1950s?
Answer: EPs

Question: What was a benefit of EPs over LPs?
Answer: EP discs were cheaper

Question: What three speeds were sound on most home stereos in the mid 1950's?
Answer: 78, 45, 33 1⁄3

Question: What feature of 45s required an adapter in most home stereos?
Answer: larger center hole.

Question: What feature was found on more home stereos that allowed continuous play between records?
Answer: changer

Question: What format was less common but could sometimes be found on home stereos?
Answer: 16 2⁄3 rpm

Question: Wy did records outside of the US often have small holes with the ability to punch out the center?
Answer: for use in jukeboxes

Question: What were the plastic inserts which would adapt 45s to the smaller spindle of an LP player called?
Answer: spider

Question: What invention did Thomas Hutchinson introduce?
Answer: spider

Question: Whom were the adaptable inserts for 45s to LPs commissioned by?
Answer: RCA president David Sarnoff

Question: How many spiders were sold in the 45 rpm heydays?
Answer: tens of millions per year

Question: What term was coined to differentiate better sounding products in the 1920s?
Answer: high fidelity

Question: What magazines provided reviews for audio equipment?
Answer: High Fidelity and Audio

Question: What happened in 1958 that changed the home music scene?
Answer: variety of improvements in recording and playback technologies

Question: During what years did the term HiFi take off with engineers?
Answer: 1930s and 1940s

Question: What term would be used when one said they produced perfect sound reproduction?
Answer: high fidelity

Question: What did Alan Blumlein event?
Answer: stereophonic record system

Question: When did EMI create the first stereo discs?
Answer: 1933

Question: What was the benefit of 45/45 stereo sound?
Answer: more natural listening experience

Question: What year was stereo sound patented? 
Answer: 1931

Question: How was the commercial success of stereo sound in the 1930s?
Answer: was not exploited commercially until much later.

Question: What did quadraphonic recording feature?
Answer: recorded four separate sound signals.

Question: What was the newest break through in home sound systems in 1971?
Answer: development of quadraphonic records

Question: How would the commercial success of quadraphonic records be defined?
Answer: commercially unsuccessful

Question: What did developments in quadraphonic recordings inspire?
Answer: later surround-sound systems

Question: What was a major issue with CD-4 technology?
Answer: no cutting heads were available that could handle the HF information

Question: How widespread was the success of CD-4 format? 
Answer: even less successful than the two matrixed formats

Question: What format was less successful than quadraphonic?
Answer: CD-4

Question: What were potential benefits of the CD-4 format?
Answer: reduced distortion and greater headroom

Question: Who created the CD-4 format?
Answer: RCA

Question: For which company did C. Robert Fine work for?
Answer: Mercury Records

Question: What benefits were found in using the 35mm magnetic film?
Answer: prevented tape layer print-through and pre-echo and gained extended frequency range and transient response

Question: Who developed the 3-to-2 mix to create lifelike recordings?
Answer: Mercury

Question: Which microphone hold the most importance in 3 microphone recording?
Answer: The center

Question: In which year did Mercury begin 3 channel stereo recording?
Answer: 1955

Question: What technique were used to reduce inner-groove distortion?
Answer: CBS DisComputer and Teldec Direct Metal Mastering

Question: Who developed the Dynagroove format?
Answer: RCA Victor

Question: Why did some music lovers frown upon diaphragming? 
Answer: unnatural side effects

Question: What did closer groove spacing result in?
Answer: Lower recorded volume

Question: What would be found with higher recorded volumes?
Answer: wider spacing

Question: How did Disco Eye-Cued system benefit DJs?
Answer: visual cue to DJs mixing the records

Question: How did Disco Eye-Cued sysems differ from LPs?
Answer: only contain one track each side

Question: When was the Disco Eye-Cued System developed?
Answer: late 1970s

Question: What were direct to disc recordings expected to product?
Answer: a "purist" transcription

Question: When were 'half speed' and 'digitally remastered' recordings being released?
Answer: late 1970s

Question: What was required for quality playback of DBX recordings?
Answer: automatic gain control

Question: When were DBX recordings released?
Answer: mid-1970s

Question: How compatible were DBX encoded recordings with prior technologies?
Answer: completely incompatible with

Question: What was the intention of DBX encoded recordings?
Answer: reduced the effect of surface noise on quiet passages

Question: What did CBS develop in order to reduce outside noise?
Answer: "CX" noise reduction

Question: What company out of Japan offered laser turntables that read vinyl discs optically?
Answer: ELPJ

Question: What was a benedit of laser read discs?
Answer: eliminates record wear

Question: What was a drawback of laser read discs?
Answer: degrade the sound

Question: What was the primary use of laser read discs?
Answer: archiving of analog records

Question: What was a major issue for laser read discs?
Answer: dust

Question: Who is Irene?
Answer: scanning machine for disc records

Question: Where was IRENE developed?
Answer: Lawrence Berkeley Laboratories

Question: What is the primary use of IRENE?
Answer: retrieve the information

Question: Can IRENE read vertically modulated information?
Answer: cannot read vertically modulated information

Question: Does IRENE require the  ability to touch the media?
Answer: without touching the medium

Question: What terms are used for recording with more than one track?
Answer: long-play" (LP) and "extended-play" (EP

Question: What is a typical max playing time of an LP?
Answer: forty-five minutes

Question: Which format is cheaper, LP or EP?
Answer: LPs

Question: Which format held recordings ranging from 10 to 15 minutes?
Answer: 7-inch EP

Question: What was a normal play time per side for LPs?
Answer: 22 minutes

Question: Which colors of 45 were available as late as 1952 before being discontinued?
Answer: yellow and deep red

Question: PeeWee the Piccolo was what?
Answer: The first 45 rpm record created for sale

Question: What significance does Dec 7/ 1948 hold?
Answer: The first 45 rpm record created for sale

Question: How many colors were 45s available in when first released?
Answer: seven colors

Question: When did RCA release the 45?
Answer: March 1949

Question: In which direction does the groove in a normal disc run?
Answer: outside edge towards the center

Question: How is sound encoded on a commercial disc?
Answer: by fine variations

Question: Does it matter at which speed a disc is spun?
Answer: correct speed

Question: Do all grooves bear data?
Answer: no

Question: What is a 'lead out'?
Answer: wide-pitched section

Question: What is the center where the data joins to complete a circle?
Answer: lock groove

Question: Do turntables play music on lock grooves?
Answer: most automatic turntables are incapable

Question: What do most automatic turn tables do when they meet a lock groove?
Answer: lift the arm