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Dr McKay

macrumors 68040
Original poster
Aug 11, 2010
3,907
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Kirkland
I have a 500GB external USB hard drive, and I want Windows 7 and Snow Leopard/Lion to be able to read AND write on it,

Is there a file format that isn't FAT32 that I can format it in?
 
You could use exFAT, which removes the small file limitation, or you could format in HFS+ and get MacDrive for windows, or use one of the tricks to get a Mac to write NTFS. Easiest way is probably exFAT
 
You could use exFAT, which removes the small file limitation, or you could format in HFS+ and get MacDrive for windows, or use one of the tricks to get a Mac to write NTFS. Easiest way is probably exFAT

Snow Leopard and 7 can Read + Write to exFAT? And theres no file limitation?
Do you know of any 'Cons' of this file format?
 
FAT32 (File Allocation Table)
  • Read/Write FAT32 from both native Windows and native Mac OS X.
  • Maximum file size: 4GB.
  • Maximum volume size: 2TB
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: Install NTFS-3G for Mac OS X (free)
  • Some have reported problems using Tuxera (approx 33USD).
  • Native NTFS support can be enabled in Snow Leopard, 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
HFS+ (Hierarchical File System, a.k.a. Mac OS Extended)
  • Read/Write HFS+ from native Mac OS X
  • Required for Time Machine or Carbon Copy Cloner backups of Mac internal hard drive.
  • To Read/Write HFS+ from Windows, Install MacDrive
  • To Read HFS+ (but not Write) from Windows, Install HFSExplorer
  • Maximum file size: 8EiB
  • Maximum volume size: 8EiB
exFAT (FAT64)
  • Supported in Mac OS X only in 10.6.5 or later.
  • exFAT partitions created with OS X 10.6.5 are inaccessible from Windows 7
  • 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
 
I have a 500GB external USB hard drive, and I want Windows 7 and Snow Leopard/Lion to be able to read AND write on it,

Is there a file format that isn't FAT32 that I can format it in?
I would recommend that you install the freeware NTFS-3G driver which will allow your Mac to read, write, and format NTFS. I would recommend against exFAT because currently only one release version of MacOS X can read it--MacOS X 10.6.6. Installations of older versions of Windows may not have the required update to support exFAT.
 
I would recommend that you install the freeware NTFS-3G driver which will allow your Mac to read, write, and format NTFS. I would recommend against exFAT because currently only one release version of MacOS X can read it--MacOS X 10.6.6. Installations of older versions of Windows may not have the required update to support exFAT.
I agree with your recommendation, due to incompatibility with many OS versions. One very minor correction:
Mac OS X Snow Leopard added exFAT support in version 10.6.5 on November 10, 2010. Mac OS X 10.6.5 and later can read, write, and create exFAT partitions.
 
I would recommend that you install the freeware NTFS-3G driver which will allow your Mac to read, write, and format NTFS. I would recommend against exFAT because currently only one release version of MacOS X can read it--MacOS X 10.6.6. Installations of older versions of Windows may not have the required update to support exFAT.

The only cross platform sharing I want is between My laptop running Windows 7, and my friends MBP running Lion/Snow Leopard.
 
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