What's the difference between Mac OS Extended and Mac OS Extended (Journaled)? Which one is better to format an external hdd that's going to be use mainly as a scratch disk?
I have always been under the impression that OS X keeps a log file of where everything is located on the HD in Journaled so it can access it faster after multiple uses. i.e. Calculator taking 5 dock bounces the first time you use it and only 3 the next and .5 the third+