I been using idefrag for about a year and some months and I run the full reboot mode defrag with the B-tree options etc.. and one thing I notice is it does make Disk I/O and the mac feel snappier ...

k, systm is running ok/good, no probs. but i noticed that after i used norton speedisk to optimize my hard drive (move swap file to outside of platter while defragginf), that windows (xp) defrag seems ...