I don't know about 10.3 but in 9 when I got to 60 of 80 gigs filled on my hard drive it seemed to slow down considerably. Where are your numbers saying it isn't so? Just my experience. Richard > > On Jan 7, 2004, at 10:52 AM, <illovox at comcast.net> wrote: > > > They slow down then because they are likely fragmented. Defrag and > > things > > get quite fast again. Now this is a can of worms I know, but it's my > > belief > > based on experience > > I invite you to demonstrate your belief with actual benchmark figures > that can be reproduced. > You will find that the effect you believe in does not take place in > MacOS 10.3 > > Peter