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Discussion in 'Android Hacks and Help' started by brolly, Aug 13, 2011.

  1. brolly

    brolly New Member

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    Hey I have a 16 gig sd card dut it reads as 14 gigs I tried reformatting it but the same result can somebody help?

    Sent from my X10a using DroidForums
     
  2. guidot

    guidot Developer Relations Staff Member Premium Member

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    I have a 16GB card in my D1.

    OS says there is 14.93GB available. There's nothing wrong with yours. Formatting reduces the size is all; its normal.
     
  3. gmorgan056

    gmorgan056 Member

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    +1 I have a 32 gb, and it says 29 gb.
     
  4. Droid DOES!!

    Droid DOES!! What iDoesn't Theme Developer Premium Member

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    +1 my 32 says 29

    This thread has been Thunder struck!!
     
  5. CJM

    CJM Developer Relations Staff Member Rescue Squad Premium Member

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    If forget where I read this and all the details, but what you describe is normal. I believe it's because some of the cards memory is set aside for the system. And if I remember correct, to determine the actual usable space of a card, multiply the the total space (16 or 32) by .93 . Which makes sense from what the others members posted.

    Sent from the Unbrickable DROID
     
  6. cupfulloflol

    cupfulloflol Senior Member

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    Essentially it is different terminology. It's the difference between decimal and binary. In decimal 1kB = 1000 bytes. In binary 1kB = 1024 bytes. Or the difference between a gigabyte vs a gibibyte. Storage space is marketed as decimal, yet computers only understand binary. Definitions of the SI units: The binary prefixes

    So the 16GB card maths would look like :
    16,000,000,000 / 1024 / 1024 / 1024 ~ 14.9GiB (binary)

    If you were to buy a 2TB (decimal) drive, you would do:
    2,000,000,000,000 / 1024 / 1024 / 1024 / 1024 ~ 1.81TiB (binary)
     
    Last edited: Aug 14, 2011
  7. brolly

    brolly New Member

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    Thanx

    Sent from my X10a using DroidForums