I will say again that TechTool Pro and Drive Genius are excellent all around utilities that do a lot more than just Optimization.

YOU SHOULD NOT NEED TO "DEFRAGMENT" or "OPTIMIZE" OS X DISKS! This is done automatically by the system everytime you open a file. You are not using Windows anymore!!! From Apple…

When the file and situation meet certain criteria, then OS X will defragment the file, yes, but due to the nature of file systems and hard disks, you can still have a fragmented di…

Onyx is a good tool, and it is free! http://www.titanium.free.fr/pgs/english.html

Quote: Originally Posted by Tomchu Any fragmented disk will induce a performance penalty over a non-fragmented disk. Quote: Originally Posted by Apple Developer Connect…

Quote: Originally Posted by cambro Guess ADC just got it wrong.... I suppose there might a peculiar situation in which your disk gets screwed up and needs "defragmented" or "o…

i second onyx as an overall great app.

Quote: Originally Posted by Tomchu I guess I have to put it in simpler terms for you: File. 30 MB. Continuous. Files after this file on disk. You edit file in multiple places, …

Quote: Originally Posted by jocker Hmm - may have misread you but every time you save a file over a certain size (forget the exact figure now) on any osx system from Panther onw…

Cambro, you should read the entirety of the articles you post: "If your disks are almost full, and you often modify or create large files there's a chance the disks could be fragm…

Dude, I read the article. How about you read the thread? As they say...defragging MIGHT (not WILL...MIGHT) help if your disk is filled to capacity and/or you use really large fil…

And if the file you're working with is 21 MB? What about if you regularily work with a lot of 30 MB+ files? Frick. Get a clue before going all emotional.

*sigh* So tell me ... Is a fragmented file read just as fast as a continuous file? Answer that basic question.

Tomchu: I hear you in principle...a perfectly structured/optimized drive will be faster. All I am saying is this: From kernelthread.com: Quote: Defragmentation on H…

I'm not saying that a Mac user should defragment their drive. I don't do it myself. All I'm saying is that fragmentation is still a very real occurrence, and that any fragmentatio…

What happens if you use Carbon Copy Cloner? Does it put all related stuff together and therefore defrag the resultant volume? If so, you've got a historical backup as well as a def…

I believe CCC copies on a file level rather than a sector level, so yeah, it would result in a completely defragmented drive.

"Even if you are correct in principle, in practice it just isn't worth it and if you are unique vid-editing god, use a dedicated scratch partition and be done with it." You don't…

http://www.alsoft.com:16080/DiskWarrior/ one link does it all.

DiskWarrior is great, but it should be noted that it doesn't defragment your hard drive; it is a tool for repairing, replacing and optimizing disk directories.

As no one has mentioned it yet, there is one thing you should be aware of in OSX pertaining to system maintenance. It's basicly designed to be left running 27/7 so that automatic …

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"SOMEDAY, when you've filled your hard drive, or are working with LARGE files, then yes, there are defragment programs; I use DiskWarrior." Sigh. Diskwarrior is NOT a disk defrag…

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Right: it's defragmenting the directory, not the files. tooki