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DVD9
Stands for: Digital Versatile Disc 9
Terminology | Dictionary | Explanation
DVD9 is an single-sided dual-layer dvd disc and can hold approximately 7.95 gigabytes of data. DVD disc manufacturers love to use marketing terms and sell their discs as 4.7GB discs, but this is not true -- the 4.7GB
is calculated by using so-called "Japanese gigabytes", where the power of calculations is 1,000 instead of 1,024 (and 1.024 is the correct way to calculate everything in computer world -- so, 1024 megabytes = 1 gigabyte).
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