Offset in Seagate external HDD

[hibernate]

I've seen several Seagate USB drives and all of them had an offset out of the box, something like:

Code:

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Reserved        128 Mb    17 Kb
  Partition 2    Primary        5588 Gb   129 Mb


My first motive was to repartition it because I needed no extra mess in a layout, but on second thought I left it as is. So is there a reason for this? Perhaps less wear on track 0 or so?