We are getting reports from Germany that a similar bundle with the Nektar LX49 keyboard is also showing up with a Studio One 2.6 disc and a Studio One 3 product code. The problem is that once the disc is installed, the Product Key will not unlock the software.
The solution to the problem is the same as the best answer provided here.
To resolve this issue, please discard the Studio One 2.6 disc. The product code you have is for Studio One 3 Artist which can be downloaded from our website in your account at http://my.presonus.com.
Go here to get started and follow the steps for registering, download, and running your software:
http://support.presonus.com/forums/20567618-Getting-Started