dos FAT or mac os extended ??

Discussion in 'Mac Basics and Help' started by guido.coza, Dec 20, 2013.

  1. guido.coza macrumors member

    Joined:
    Jan 12, 2011
    Location:
    South Africa
    #1
    Hi
    I have a 2012 MBA with 125GB HD.
    I have now 2 WD 1TB external HD with all my pictures on it. (450GB)
    The first One is MS dos FAT format the new one mac os extended (Journeled)
    I organise my pics with Lightroom.
    For all purpous and intend, does the format make any difference when I work with it or is it only of relevance if a dos machine wants to access it.
    The question is relevant because i have to "show" Lightroom the file location!!
    Thanks for your help
    Guido
     
  2. McGiord macrumors 601

    McGiord

    Joined:
    Oct 5, 2003
    Location:
    Dark Castle
    #2
    FAT32 limits the files size to 4GB, but is compatible with other OS.
    If you are only using a Mac go for the Mac formatting.
     
  3. mrichmon macrumors 6502a

    Joined:
    Jun 17, 2003
    #3
    If you are only accessing the external drive from a Mac then use a GPT partition table and Mac OS extended format (journaled).
     
  4. guido.coza thread starter macrumors member

    Joined:
    Jan 12, 2011
    Location:
    South Africa
    #4
    Hi McGiord
    The 4GB limit is the main reason for the OS.
    So the one I cary with me should be OS the backup can be Dos except I have files above 4GB?!
     
  5. hallux macrumors 68020

    hallux

    Joined:
    Apr 25, 2012
    #5
    If you're using Time Machine for your backups you HAVE to use the Mac OS Extended (Journaled) format for your drive.
     
  6. McGiord macrumors 601

    McGiord

    Joined:
    Oct 5, 2003
    Location:
    Dark Castle
    #6
    FAT32

    If you are going to use the HDD for backup it is better to format it with the Mac format instead of FAT32.

    Apple take on FAT32
     

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