I must say those Samsung disks are an utterly stunning. I have 4 of the 500GB variety.

The are the best performing.
They are the quietest (even without changing the acustic management).
They are practically the cheapest you can buy.

I can't remember when someone else had such a killer product.

(anxiously scans headlines for "IBM deathstar" like bad news).

But what about the effect of defragmentation? Isn't it more important than the time the process has taken? Honestly, i never found any noticeable difference before and after defrag in terms of system or application launch times or copy/move procedures. Given that most of the programs and the system itself consist of numerous -and very small- files and the disk head should shuffle between them anyway...?