FYI: New version of Disk Warrior seems to hang when run with Snow Leopard

Question

FYI: It seems that the new version of Disk Warrior hangs when run in Snow Leopard

Answer 1

I have been using DW 4.2 on 10.5.8 and the speed-up was the first thing I noted, too, so it isn't just SL.
Now if it would only 'come up for air' and respond to input to move window (so I can put it where I can see it if needed) I'd like that.
There is a 23 page review of Snow Leopard on Ars. On page 22:
People sometimes ask what, exactly, is wrong with HFS+.
Aside from its obvious lack of the features just listed, HFS+ is limited in many ways by its dated design, which is based on HFS, *a twenty-five year-old file system.*
To give just one example, the centrally located Catalog File, which must be updated for each change to the file system's structure, is a frequent and inevitable source of contention. Modern file systems usually spread their metadata around, both for robustness (multiple copies are often kept in separate locations on the disk) and to allow for better concurrency.
Practically speaking, think about those times when you run Disk Utility on an HFS+ volume and it finds (and hopefully repairs) a bunch of errors. *That's bad, okay?* +*That's something that should not happen*+ with a modern, thoroughly checksummed, always-consistent-on-disk file system unless there are hardware problems (and a ZFS storage pool can actually deal with that as well). And yet it happens all the time with HFS+ disks in Mac OS X when various bits of metadata to get corrupted or become out of date.
Apple gets by year after year, tacking new features onto HFS+ with duct tape and a prayer, but at a certain point there simply has to be a successor—whether it's ZFS, a home-grown Apple file system, or something else entirely. My fingers are crossed for Mac OS X 10.7.
If Disk Utility was reliable in mapping out weak sectors (it is not) and report/log errors. But it doesn't and I trust my data to other file systems when possible. We've come to expect and depend on 3rd party utilities and that Apple First Aid doesn't fix every possible error.
Scanning one drive for errors can take a long time. Maybe it needs to be done, maybe in the background. With 2TB drives it gets worse. Spending hours to scan for errors??? I've set TechTool Pro to concurrently scan anywhere from one to a dozen volumes at once.
An ounce of prevention, as they say, is worth a pound of cure.