[mythtv-users] [OT] How may bytes available on a single layer DVD-R?

[Ron Johnson]

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

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Ron Johnson, Jr.
Jefferson, LA USA
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"No drug, not even alcohol, causes the fundamental ills of
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