While not wanting to get into a technical argument on this, I for one while
understanding the file system is better in linux than in windows, am sick and
tired of people saying there is no need and the lack of one in package managers,
if I for instance dl a huge dvd iso and it ends up with thousands of fragments
on say, a HD with lack of room to write it in one go, then it would be useful to
defragment it. I've had several occasions when writing a huge DVD iso was
problematic and by defragmenting it, i was able to write it properly. Also, it
would be nice to know all files can be placed up the front end of the drive to
reduce time between head read shifts.