Why I buy this one ?
- Uses directory data to quickly rebuild the directory structure. Eliminates risk of losing access to files ­ other disk repair utilities attempt to fix the directory structure and avoid deleting sections of the directory
- Scavenges directory to find all salvageable file and folder data, even data contained in damaged nodes
- Eliminates unseen directory errors, preventing minor directory errors from escalating into major problems
- Recovers lost files and folders
- Optimizes directory for maximum directory performance, speeding up overall disk performance

PowerMax offers this stuff with condition New, new for:

Price : $93.88 Usually ships in 1-2 business days

mac_pro_online from CA, United States offers this stuff for:

Price : $94.47 Usually ships in 1-2 business days

J&R Music and Computer World offers this stuff with condition New, new for:

Price : $94.99 Usually ships in 1-2 business days

What our customer's say!

"Alsoft Disk Warrior 4", My daughter has an ibook running Panther 10.3X and it was slowing up and Norton Utilities for MAc couldn't resolve the issues it saw. There was no place to go with Norton as they had pretty much orphaned the Mac Utilities at that point.

I read the reviews on Disk Warrior 4 and it seemed to have all pleased with it's performance.

I ordered it, opened it up- put it in the drive and booted thru, and it was rather simple-almost too simple, not many options but it did what it had to do and the machine seemed to run faster- then I pulled the 256 ram from under the keyboard and put in a 1GB stick ( an initial 256MB is embedded on the motherboard) for a total of 1.256 of ram- now its back to performing.

Yep, Disk Warrior 4 was worth the 100 or so I paid for it.

"Has saved me a few times", I bought this due to disk damage that my other utilities programs could not fix. The installation was a bit problematic, but after struggling through it I was able to save my disk. (There was much rejoicing.) I have since used it again and again with good results. However (as has been noted), if you are using OS 10.5 Leopard on an Intel MacBook Pro, as I am, you had better have another FW drive you can boot from with the program installed. Booting from the CD to repair a drive was unsuccessful. That is the reason for only 4 stars. Not a big deal if you have another external drive, though. This program is the best drive repair utility I have found. (Note: It is NOT for scanning a drive to find deleted files to recover them.)

""Leopard bootable" disk does NOT boot on 2008 hardware (MacPro) ", This highly regarded disk management utility works as claimed on most hard drives (including TimeMachine backup). Installation instructions lead one to believe to just pop the steeply-priced ver 4.1 CD into its slot, and you'll be able to rejuvenate your system volume. NOT SO!!

The latest CD (as well as the downloadable version) boots from OSX 10.4.9 and--as I discovered in a long frustrating afternoon--'Tiger' will not boot the 2008 version of the MacPro (nor some other 2008 Apple hardware). Had I known - after trolling the support database - that the fine print way down mentions ... just in passing ... that the MacPro will be supported only in a later release (no release date offered), I would not have purchased the product at this time [why bother, when the only 'workaround' is to boot from another Leopard installation].

Because the claims made are not supported by the facts, nor are the product's limitations clarified in the installation instruction sheet, I down-rate an otherwise fine product for wasting lots of my time and money.

"GREAT PRODUCT", I purchased the update, which I received in about a week. Version 3.03 brought my Mac back into the living when Disk Utility said it couldn't repair the disk. To check the update from 3.03 to 4, I ran 3, no differences,
Then ran 4 where a difference (problem) was found.

"When You're Down, Disk Warrior Will Pick You Up", DiskWarrior totally saved me from myself. If you're a college student, with too much time over the summer, experimenting with your computer, then you should definitely invest in this product before you get yourself in a pickle.

Because of all my free time, I had been reading about securing your computer by erasing your free space. I performed it on my startup disk on my iBook and everything went fine. I performed it on my external firewire hard drive and it stopped mounting. Oh snap. There goes years of data.

I read reviews and researched and finally settled on this product. I got it, popped it in and opened up the app. It was amazing that it could recognize something that (allegedly) didn't exist! So I hit rebuild and let it sit overnight. I came back the next morning to find it kind of hanging, so I forced quitted it and ran it again. This time, it went straight to rebuilding and showed the report. Well, the hard drive is dead (disk malfunction/mechanical problems), but it recovered all my files. Awesome.

Even though it couldn't save my hard drive and it took two runs to make it work (minus one star), I still recommend it highly. It's worth the money. In fact, every college student should have a copy sitting on their bed in their dorm when they move in (or mailed to them when classes start). It's a life saver.

Read this reviews before You buy...

"DiskWarrior", DiskWarrior keeps my hard drives running smoothly and prevents potential problems. I highly reccomend it.

"Saved my MacBook and Time Machine Drives", I have used older versions of DiskWarrior but after upgrading to my MacBook thought I didn't need it anymore. I tried using Disk Utility to fix my internal drive but got a "Keys out of order" message and a message that the drive could not be repaired. A quick trip to the Apple store to pick up DiskWarrior and an hour later I had fixed my internal drive and my Time Machine drive.

Pros -
Fixed two drives that Disk Utility could not and saved me many hours of reinstalling OS, files, apps, etc.

Cons -
Upgrade from Alsoft takes 3 to 4 weeks to receive your CD (i.e. purchase before you need it or add $50 to the cost of your upgrade)
Must reboot your machine running Leopard into Tiger using the CD
Rebooting with the CD takes 10+ minutes
During repair it can appear that nothing is happening for 10+ minutes yet it is still working... be patient and go get lunch or coffee

"DiskWarrior 4.0", Alsoft DiskWarrior 4.0: Mac Univeral Binary WDD105
Works as well as previous DiskWarrior 3. A standby for my iMac. Has corrected all problems that I have had.

"Do yourself a favor. BUY THIS NOW. I'm v.e.r.y serious", U.N.L.E.S.S. Y.O.U. H.A.V.E. A H.A.R.D D.R.I.V.E B.A.D B.L.O.C.K F.A.I.L.U.R.E, or entire sections of your drive are physically wiped out beyond compare, then this software will save your butt. But waiting three to four weeks (Alsoft.com) or possible overnight from Amazon is not going to save you when you need it.

DiskWarrior just brought my system back. I couldn't use the mouse, couldn't save properly, Disk Repair was in techno-red about the problems. (I hooked up an external drive to a dead drive computer and used Disk repair, then found a ver 3.3 copy of DiskWarrior installed there.)

After 90 minutes I was back in business. BUT GUESS WHAT? During the course of going through the process, DW flashed that it recognized the dead drive on the host computer. Now I know that the latest version can fix it, which Alsoft claims can deal with the blinking "?" and dead startup.

I've used DW for years, and keep forgetting that DW should be used in lieu of Disk Repair to keep your system humming. It is that good. Hell, tech support firms use it when you drag your 'dead' computer in and then charge you $100 for labor to fix it.

Someone complained htat they dont give enough instructions. DW made it pretty idiot proof. Spending ten minutes reading what Alsoft says on their site about it is well worth the time. Besides, when your computer is dead, you can't read PDF anyway.

If you can read this, and you're on your computer, it's working. What about the times when it isn't. If you dont have backup computers (PLURAL) then you better have this in your arsenal ASAP.

I bought the upgrade from Alsoft until I realized just now that I should have bought from Amazon -- but I didn't think Amazon would have it -- and get delivery Monday morning. I'm going ahead now with the full purchase here because I can't wait four weeks. So I have two licenses, so what.

"Don't Buy Into Exaggerated Claims", Yesterday my external hard drive failed. After a quick visit to the Macintosh forums, I learned about DiskWarrior and was enthralled with the tall reviews and huge claims of success.

To make the story short, DiskWarrior did nothing to repair my drive. For DiskWarrior to work, the damage to your drive must be minimal and of a specific nature. While DW claims to repair a damaged directory, again, the damage must be minimal and within DW's abilities.

There seem to be a few success stories from other folks who lucked out and had the minimal damage necessary to enjoy success with DiskWarrior, but after using the software and giving their tech support department a shot at helping me, the damage to my directory (and subsequently my entire hard drive) was unrepairable.

Go on faith that some people are having success, but also know that there are instances when DW will be useless - as was the case with my hard drive. I would go so far as to say that the claims DW makes about itself are overstated: "DiskWarrior rebuilds your disk directories making them error-free, eliminating ANY problems the errors would have caused, and recovering lost files. It fixes ANY problem with master directory blocks and alternate master directory blocks, volume headers and alternate volume headers, volume bit maps, catalog trees, and extents trees." (emphasis added)

Fixes ANY problem?

I don't think so.

By the way, DiskWarrior's purchase agreement states in no uncertain words: "All sales are final".

As in, no refunds - even if it doesn't work for you.