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  1. #1


    Member Since
    Aug 26, 2010
    Posts
    7
    can't read my iomega 1tb drive...
    hi,
    I purchased 1 tb Iomega hard drive,the problem is when i formatted with mac it doesn't copies more than 4 gb files from my windows pc. I have tried diskpart ,but also it doesn't copy.but when i format with pc it copy it, & when i connect it to my mac it says "the disk you inserted was not redable by this computer",can you please help me...

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,248
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    What file system did you use when you formatted it with your Mac? It sounds like you may have formatted the 1 TB as FAT-32? (MS DOS) FAT-32 has a restriction on a single file size - can be no larger than around 4 GB.

    Then it appears you formatted the drive with your PC? A PC will not format a drive that large unless it's formatted as NTFS. Your Mac can read NTFS but can not write to it.

    What exactly are you trying to do? If you wish the drive to be compatible for both your Mac and PC, then it has to be FAT-32 but with the file size limitation. Otherwise if you use NTFS, you'll need third party software to read-write with your Mac.

  3. #3


    Member Since
    Aug 26, 2010
    Posts
    7
    yeah i did it with fat -32,i want to use it in both pc and mac,i want to copy files more than 4 gb,so i need to format by ntfs, & which third party software can i get? is it free or do i need to buy it?please help me...

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,248
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    What operating system are you using? If you're using Snow Leopard, you may be able to just turn on its built in ability to read and write to NTFS, otherwise I recommend Paragon NTFS. It's $39.95 US but it can go both ways - it allows you to R/W to NTFS from your Mac and also is able to R/W to your Mac from Windows.

  5. #5


    Member Since
    Aug 26, 2010
    Posts
    7
    I'm using snow lepord, is there any other option without buying the software and use the hard drive for both mac and pc,I have my old files in my pc , in which are like 8 gb files how can i get them...

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