Happy 25th Birthday to the Compact Disc
August 17, 2007 by Toby Getsch
Among other interesting timeline facts, here’s one interesting tidbit.
“Philips’ plan for a CD with a 11.5cm diameter had to be changed when Sony insisted that a disc must hold all of Beethoven’s 9th Symphony.
The longest recording of the symphony in record label Polygram’s archive was 74 minutes and so the CD size was increased to 12cm diameter to accommodate the extra data.”
Also filed under Casual Friday. Haven’t used that category in a while.


