SD Card Format ?

Discussion in 'Mac Basics and Help' started by Washac, Jul 12, 2016.

  1. Washac macrumors 68020

    Washac

    Joined:
    Jul 2, 2006
    #1
    I have new smart card device for an older computer that requires the use
    of a 2GB SD card formatted to FAT 16.

    I know booting into Bootcamp would or should do the task but was wondering if
    there was an easy way to do this under OSX ?
     
  2. Weaselboy Moderator

    Weaselboy

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    #3
  3. Washac thread starter macrumors 68020

    Washac

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    Jul 2, 2006
    #4
  4. Rockadile macrumors regular

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    Jun 11, 2012
    #5
    Could I format a 64GB+ microSD card (exFAT) to FAT/FAT32 using disk utility? This is to use with a dash cam that is limited to 32GB and under.
     
  5. Weaselboy Moderator

    Weaselboy

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    #6
    You can use Disk Utility to format to FAT32, but not the older FAT16. You would need to use the Terminal process I linked to format to FAT16.
     
  6. dwig macrumors 6502

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    Key West FL
    #7
  7. Washac thread starter macrumors 68020

    Washac

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    Jul 2, 2006
    #8
    tried that, It gives you no choices other than just to format the card/device.
     
  8. Rockadile macrumors regular

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    Jun 11, 2012
    #9
    MS DOS FAT is FAT32, correct? I wanted to know if disk utility will even give me the FAT32 format option instead of only exFAT for 64GB+ cards.
     
  9. Weaselboy Moderator

    Weaselboy

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    #10
    Correct. MS-DOS in Disk Utility is FAT32.
     
  10. dwig macrumors 6502

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    Jan 4, 2015
    Location:
    Key West FL
    #11
    Did you test the card after formatting it?

    the SD Association's spec for SD (actually SDSC) cards is that those between 32mb and 2gb use FAT-16b format. SDHC use FAT-32 and SDXC use exFAT by default, though other formats are supported by some devices and OSs. I would expect the SD Assoc's formatter to use FAT-16b when it senses that the card is an SDSC card.
     

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