Would appreciate a solution, as this discrepancy is uncomfortable ans doesn't sound like something terryibly difficult to solve.
OS X Mountain Lion (10.8.3)
One my machine, DU and Finder both show 25.01 available, so what's the issue on your machine?
My issue is well known, and described in the bottom of this article, under Additional Information: http://support.apple.com/kb/HT4878
Sorry, but without which machine you're using in your profile, difficult to sort through those local snapshot issues. I don't use them or anything associated with Time Machine, since I prefer bootable backups/clones, and don't have a portable machine.😉
Since the Local Snapshots are "expendable" -- they'll be deleted automatically if your disk gets over 80% full -- the difference really isn't a problem (once you know what it is!).
Thus, for most purposes, the "true" available space on Finder is actually more acccurate than Disk Utility.
To see what's really going on, use the "Storage" display, as it breaks the Local Snapshots out separately (but labels them "Backups").
Can the available space statistic in Finder be corrected to reflect the "true" available space, as shown in Disk Utility?
