16gb Micro SD card only reading 14.8gb
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Thread: 16gb Micro SD card only reading 14.8gb

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    larz's Avatar
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    16gb Micro SD card only reading 14.8gb

    Just picked up my new Storm2 last night and I noticed that it read the 16GB Micro SD card to have only 14.8gb? I realize some space always gets taken but 1.2gb worth? anyone here that could shed some light on this issue??:17:


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    Quote Originally Posted by larz View Post
    Just picked up my new Storm2 last night and I noticed that it read the 16GB Micro SD card to have only 14.8gb? I realize some space always gets taken but 1.2gb worth? anyone here that could shed some light on this issue??:17:
    I am sure that is normal i think my 8gb card would read only 7.2GB available when it was blank

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    sounds normal. It's like when you pop a 80 gig hdd in a computer and you only get like 70ish
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    Quote Originally Posted by larz View Post
    Just picked up my new Storm2 last night and I noticed that it read the 16GB Micro SD card to have only 14.8gb? I realize some space always gets taken but 1.2gb worth? anyone here that could shed some light on this issue??:17:

    This is correct. There's nothing wrong with your card. A gigabyte is actually 1,073,741,824 bytes (not 1,000,000,000). So, a card labeled "16GB" is in reality ~14.9GB.
    (16,000,000,000/1,073,741,824 =14.9
    In other words, the device is using the real definition of a gigabyte to calculate the value being displayed.
    Last edited by toytooii; 10-29-2009 at 11:22 AM.

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    Arrow Explaination....Totally Normal

    Quote Originally Posted by larz View Post
    Just picked up my new Storm2 last night and I noticed that it read the 16GB Micro SD card to have only 14.8gb? I realize some space always gets taken but 1.2gb worth? anyone here that could shed some light on this issue??:17:

    This is totally normal. The advertised size of memory cards/hard drives is the unformatted capacity of the drive/card. When you format the card the File Allocation Table (FAT/FAT32/NTFS) AKA the file system- takes up the difference in space that you see.

    Manufacturers sell the drive based on 1GB=1000MB, 1MB=1000kb 1KB=1000bytes....and so on.

    Hard drives/Memory Cards are formatted like this: 1GB=1024MB, 1MB=1024kb, 1KB=1024bytes...and so on...


    This works out to be approximately a loss of ~74MB per GB of advertised capacity so do the math:

    16GB advertised space * 74MB = 1184MB or ~ 1.2 GB

    16GB - 1.2GB = 14.8 GB which is what your seeing as your MicroSD card's usable capacity and it totally normal.
    Last edited by BBphreak; 10-29-2009 at 11:33 AM.

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    Giger bytes

    Thanks guys, I hate false advertising! but If this phone is up to it, I'll end up buying a 32gb card and dumping my entire music library onto it!:22:
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    Quote Originally Posted by BBphreak View Post
    This is totally normal. The advertised size of memory cards/hard drives is the unformatted capacity of the drive/card. When you format the card the File Allocation Table (FAT/FAT32/NTFS) AKA the file system- takes up the difference in space that you see.

    Manufacturers sell the drive based on 1GB=1000MB, 1MB=1000kb 1KB=1000bytes....and so on.

    Hard drives/Memory Cards are formatted like this: 1GB=1024MB, 1MB=1024kb, 1KB=1024bytes...and so on...


    This works out to be approximately a loss of ~74MB per GB of advertised capacity so do the math:

    16GB advertised space * 74MB = 1184MB or ~ 1.2 GB

    16GB - 1.2GB = 14.8 GB which is what your seeing as your MicroSD card's usable capacity and it totally normal.
    Great answer thanks for the insight!
    Driphter.com Co-Owner

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    sunkast Guest
    Quote Originally Posted by larz View Post
    Thanks guys, I hate false advertising! but If this phone is up to it, I'll end up buying a 32gb card and dumping my entire music library onto it!:22:
    It's not really false advertising... More of a technical thing than anything.

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    Nerd time! Pardon my nit-picking!
    The giga prefix really does mean 1 billion(10^9). However, computers use binary(0s and 1s), which means we always work in some variety of power of 2, not powers of 10.

    When a computer lists available space, they aren't showing you real gigabytes at all! They're actually showing you Gibibytes (Gigabinary Bytes or GiB). A Gibibyte is 2^30 bytes. So your card has 16 gigabytes, which corresponds to 14.8~14.9 gibibytes.
    So technically... It's not REALLY false advertising, just extremely misleading (and wholly dishonest).

    More here: Gibibyte - Wikipedia, the free encyclopedia
    .75 -> .148 -> .151 Hybrids -> v5
    Better and better!

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    Quote Originally Posted by larz View Post
    Thanks guys, I hate false advertising! but If this phone is up to it, I'll end up buying a 32gb card and dumping my entire music library onto it!:22:
    I'll do the same, haaha
    Running BB 9930 7.0.0.353
    BlackBerry Certified Support Specialist (v5.0)

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