Wayne Wilkin <macsys at mac.com> wrote: >http://www.macfixitforums.com/php/showflat.php?Cat=&Board=Forum38&Number=570808&page=0&view=collapsed&sb=5&o=7&fpart=1 > >http://forums.macosxhints.com/archive/index.php/t-19622.html <http://www.kernelthread.com/mac/apme/fragmentation/> Conclusion Defragmentation on HFS+ volumes should not be necessary at all, or worthwhile, in most cases, because the system seems to do a very good job of avoiding/countering fragmentation. It is risky to defragment anyway: What if there's a power glitch? What if the system crashes? What if the defragmenting tool has a bug? What if you inadvertently reboot? In some cases, you could make the situation worse by defragmenting. get a bigger drive. if you do video/audio/imaging, get a scratch disk. treating the symptoms (read: using a "defrag tool") does not cure the disease. don