Student Upgrade - "Disk Kit" Question

When ordering via the student offer (UK) you are given the option to purchase the "disk kit" for an extra £9.

This might be a dumb question but does anyone know for sure if this "disk kit" is basically just the Windows 7 disk as you would buy it in a shop? I suppose what I am trying to ascertain is whether it is a regular bootable installation disk. I am planning on getting it and figure that I will be happy to wait for the disk to arrive and install from that rather than faffing around with ISO's and making the downloaded file into a bootable DVD.

The disk in this "kit" should be exactly the same as the equivalent retail disk, dependent on Upgrade / Full.

However as they describe it as a Kit there may be additional content over the standard build - depending on if the supplier has added anything.

It is unlikely that the disk will ship with retail packaging