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technicalcat
technicalcat, Consultant
Category: Computer
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Experience:  20 years experience. B.S. Computer Science
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I have a Toshiba v63600-A external hard drive. I have used

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I have a Toshiba v63600-A external hard drive. I have used it without difficulty on my ThinkPad. I'm now trying to use it to back up my iTunes library from a Mac Mini I use as a media server. The Mac recognizes the drive, but the drive won't let the Mac write to it. How do I turn off the write protection, make the Mac an authorized user or whatever else I have to do? Thanks.
Submitted: 2 years ago.
Category: Computer
Expert:  technicalcat replied 2 years ago.
What format is it, exactly? Right-click on the drive and "Get Info" to find out.

HFS+ (Hierarchical File System, a.k.a. Mac OS Extended (Journaled) Don't use case-sensitive)
NTFS (Windows NT File System)
  • Read/Write NTFS from native Windows.
  • Read only NTFS from native Mac OS X
  • To Read/Write/Format NTFS from Mac OS X, here are some alternatives:
    • For Mac OS X 10.4 or later (32 or 64-bit), install Paragon (approx $20) (Best Choice for Lion)
    • For 32-bit Mac OS X, install NTFS-3G for Mac OS X (free) (does not work in 64-bit mode)
    • For 64-bit Snow Leopard, read this: MacFUSE for 64-bit Snow Leopard
    • Some have reported problems using Tuxera (approx $36).
    • Native NTFS support can be enabled in Snow Leopard and Lion, but is not advisable, due to instability.
  • AirPort Extreme (802.11n) and Time Capsule do not support NTFS
  • Maximum file size: 16 TB
  • Maximum volume size: 256TB
  • You can use this format if you routinely share a drive with multiple Windows systems.

exFAT (FAT64)
  • Supported in Mac OS X only in 10.6.5 or later.
  • Not all Windows versions support exFAT. See disadvantages.
  • exFAT (Extended File Allocation Table)
  • AirPort Extreme (802.11n) and Time Capsule do not support exFAT
  • Maximum file size: 16 EiB
  • Maximum volume size: 64 ZiB
  • You can use this format if it is supported by all computers with which you intend to share the drive. See "disadvantages" for details.

FAT32 (File Allocation Table)
  • Read/Write FAT32 from both native Windows and native Mac OS X.
  • Maximum file size: 4GB.
  • Maximum volume size: 2TB
  • You can use this format if you share the drive between Mac OS X and Windows computers and have no files larger than 4GB.


Please click on ACCEPT if this answer has helped you, as it is the only way we technicians get credit for our time spent helping you solve your computer problem. Thanks so much! :)

technicalcat, Consultant
Category: Computer
Satisfied Customers: 1174
Experience: 20 years experience. B.S. Computer Science
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