PoolMouse said: ><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. Quoting the beginning of that very same article: >Note that I do not intend to make any claims regarding the >fragmentation-resistance of HFS+. I have sampled too few a volume to >generalize my "results". This discussion is more illustrative than >empirical, wherein I am only suggesting a tool/method that you could use >to gauge your own volumes' situation. In other words, the author himself tells us at the outset that he isn't qualified to make any informed generalizations as to fragmentation in disks running OS X. However, have a look at what Ted Landau has to say under "Make sure you have enough free space on your startup volume" in this article: http://www.macfixit.com/article.php?story=20050310003145313 Not that it makes any difference. This is about the third time that this topic has come up on this list. The folks who don't believe that a disk running under OS X requires defragmentation aren't going to change their minds. I think that we should all drop it, take "Poolmouse's" advice, and go out and purchase two or three new hard drives, and then we will all be happy and not have any problems. 8-{D Randy B. Singer Co-Author of: The Macintosh Bible (4th, 5th and 6th editions) Routine OS X Maintenance and Generic Troubleshooting http://www.macattorney.com/ts.html