Correction for the amount of a Compact Disc
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How much is 72,200 gigabytes?
It's about 100,000 times as much as a Compact Disc
The amount of a Compact Disc is about 0.720 gigabytes.
(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 0.68360 gigabytes disc will actually hold 0.720 gigabytes of data. Such disks are 1.2 mm (0.047 in) thick.