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  1. #1

    Member Since
    Sep 22, 2007
    ext h/d prob on my i mac
    hi guys
    iva a i mac with a atmt ext drive i went to use the drive and the message disc instertion the disk you inserted was not readable by this computer ....initalize ignore or eject i tried on a pc lap top and it asks to reformat how do i open the drive many thanks in advance

  2. #2

    Member Since
    Aug 31, 2010
    Milwaukee, WI
    2010 27" iMac: CPU - Intel i5, 2.66GHz, 4GB RAM, 1TB HDD, running Snow Leopard 10.6.4
    You might want to check how that external drive is formatted. Was it used with a Windows machine? If so, and the drive is formatted NTFS, this could be part of your problem.

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