Difference between ms-dos fat and mac os extended journaled

Unless you have a pressing need to save or locate files based on letter case, stick with the non-case sensitive option.

Pick the right file system for your Mac’s internal or external storage

The format type is listed in that Info window under "General". Page content loaded. The two format you are talking about require MacDrive on the Windows PC to be able to write to the disk. As others have mentioned, though, neither is ideal for working in a cross-platform environment since Windows systems can't read Mac OS Extended volumes without third-party software. If you want to get that software then go ahead, otherwise you'll need to dumb down your options and stick with ExFAT, which is the better cross-platform format.

Pick the right file system for your Mac’s internal or external storage | Ars Technica

I don't know what case-sensative does, I was just trying to see what each exactly format option is more compatible with a PC platform. Sep 8, The upshot, as previously mentioned, is that none of the Mac OS Extended verisons, whether journaled, case-sensitive, encrypted or not, will work on a Windows machine without additional software. Windows just doesn't natively read Mac OS Extended volumes. Right, but no one, at least not I, suggested using FAT.

FAT has little place in modern disks, it's mostly used for legacy reasons, and for small volumes such as flash drives. This is an extended version of FAT that is cross-platform compatible and avoids many of the limitations of FAT - at least as far as file sizes and disk sizes are concerned. Dec 16, 8: A caveat with case-sensitive file system is that not all applications work properly with them, including a number of Apple applications. Dec 17, 6: Nor the Adobe suites.

They will even tell you when you start installing the software that the drive you're putting the software on is case sensitive and must be changed before you can install and use Adobe's software. My feeling on using case-sensitive file system is to only use them when you are forced into using them because nothing else works. Sep 6, 7: I am having exactly that problem with rebuilding iPhoto libraries that aren't functioning properly. My external drive already has on it my Time Machine backups and my iPhoto library backups which I need to keep till I get my issues with that application resolved.

Looking at Disk Utility, it seems that changing the format of the drive would erase my data. Is that so?

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The iPhoto files are too big for my hard drive, so this would mean I would have to purchase another external drive to save my data. Sep 6, 8: You really should start your own thread rather then tagging on to a thread that has been dead now since last year.

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Probably the only reason I even saw this was because I posted it on prior so it popped up for me to view. Sep 7, 2: That's the single exception. If you let Time Machine format a backup drive, it will use case-sensitive, just as it will make a case-sensitive sparse bundle disk image for a network backup.

The apparent reason is, if the backups are case-ignorant, and at a later date you decide to add a case-sensitive drive to your system and want Time Machine to back it up, too. But if the backups are case-sensitive, it can. See E7 in Time Machine - Troubleshooting for the exception. Bottom line -- if you ever have to get a new drive and start over, use case-ignorant. But you won't be able to copy the case-sensitive backup set to a new TM drive and continue backing-up to it. You can, however, still access the old backups via the Browse Other Backup Disks option, per E2 in the above link.

Sep 7, Since I always format the disks before use and never let the formating be done by an application, I was not aware of this exception of Time Machine formating to Case-Sensitive.

I learned something today. Jan 8, 2: Mac OS Extended Journaled is a format used in mac for example using the drive or disk for time machine backup, where is encrypted version means is password protected and this key will be needed for decrypting hence your data will be safe. By the way none of these versions can be used on a windows, and why would you need case sensitive journaled? Mac OS Extended Case-sentive, journaled vs. Communities Contact Support. Sign in. In addition to the file systems listed above that you can use to format your drives with, Mac OS X has various levels of support for the following file systems:.

And you may want to start reading up on ZFS, Sun's revolutionary new file system that is supposed to come to the Mac with Leopard. You must login or create an account to comment. Skip to main content When you put a new hard drive in your Mac—or connect an external one using FireWire or USB—you need to decide how to partition the drive and what file system to put on it. There are three choices: Apple Partition Map: If you want to boot a PowerPC Mac from the disk, you need to use this partition scheme.

Master Boot Record: Mac OS Extended Case Sensitive is the same file system, but in this case, it treats file names that are the same but have different case as different. So the file text. This matches the behavior of UNIX. Don't use it unless you know you need to. In addition to the file systems listed above that you can use to format your drives with, Mac OS X has various levels of support for the following file systems: Iljitsch van Beijnum Iljitsch is a contributing writer at Ars Technica, where he contributes articles about network protocols as well as Apple topics.

He is currently finishing his Ph. Email iljitsch.