Firstly there is no "best" defragger, all defraggers do an adequate job
including the utility included with WINXP. Some commercial defraggers do
allow you to defrag "offline" that permits defragging of system files but
that facility, though seemingly important to some, is, as far as I am
concerned, a non essential extra.
With respect to Perfect Disk, why do you think Version 6 will do any better
than Version 5? Software companys love issuing updates that in reality
often do nothing other than the same thing a different way and, of course,
claim it will save you nano seconds of time in doing it. Perfect disk
Version 5 will defrag you drives as well as Version 6 but you obviously
won't be running the latest and greatest software. If that's important to
you then I am sure you can find a reason for purchasing Version 6 and make
Mr Raxco very happy!
"Ant" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello all.
>
> I am currently using PerfectDisk v5.0.xxxx for Windows XP Professional
> SP1. I wonder if I should upgrade to v6.0, but I cannot figure out if
> there are any improvements and new features to upgrade. I am using
> Windows XP for gaming, Internet usage, workstation, etc. I usually
> defrag and optimize my disk data (EIDE) when I am not using the
> computer. I usually do this once a month.
>
> Is there another good disk defragger and optimizer to use? I also plan
> to use it for my Windows 2000 SP4 workstation as well.
>
> Thank you in advance. 
> --
> "The evaluator counts the ants at the picnic of progress." --Mohan Singh
> /\___/\
> / /\ /\ \ Phillip Pi (Ant); The Ant Farm: http://antfarm.ma.cx
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> \ _ / Remove ANT if replying by e-mail from a newsgroup.
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>