Strange question I know. I run Vista's defragmenter from a command prompt using defrag c: -v -w to defragment all file sizes. I am sure whenever I used to do this (over the last couple of years) it took around 30 minutes or more to complete for the C partition of 53gb. Only do this every couple of months at most and the last time I thought it was "quick" and today it's finished in 8 minutes, complete with the report to show ZERO files and folders fragmented. Anyone else run this from a command prompt and noticed anything different.
Well I have Vista's defragger set not to run automatically (plays havoc with incremental backups) and prefer running it from a command prompt. You just get no info at all from within Windows. If you enter, defrag c: -a -v it will give a detailed report, after a couple of minutes... so you can see what state the disc is in. Sure I've seen somewhere that running it from within Windows (as opposed to running the command prompt) only defrags files over 64mb in size.