On Sunday 13 March 2005 17:59, Ron Johnson wrote: > On Sun, 2005-03-13 at 12:02 -0500, Cory Papenfuss wrote: > > > How may bytes or MB is the capacity of a DVD-R disc? I am currently > > > using a guessitimate of 4250MB as the limit for my shrinking routine > > > but it would be nice to have the actaul value for fine tuning. > > > > It's commonly referred to as 4.7 GB. Of course, that's 4.7 GB in > > marketspeak, which means its 4,700,000,000 bytes. In *real* GB, divide > > by 2^30 = (1024*1024*1024) = 1073741824. For MB, divide by 2^20. > > > > Thus, it's > > 4.7e9/2^30 = 4.377 GB, or > > 4.7e9/2^20 = 4482 MB > > Not marketspeak anymore. Drive makers have been doing it long > enough that it's not "weird" anymore, like it used to be. > > http://physics.nist.gov/cuu/Units/binary.html
When computers work in base 10, then it stops being weird >:-( -- Steve Boddy
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