Is that supposed to be R1?
If it is, it looks suspect to me. I'm not familiar with a Digipak release for that title, the version I saw was like that posted on Amazon, with keep cases:
Also,
usually when the picture printed on the disc matches pictures underneath on the Digipak, the disc art is usually the same size as what's printed on the case - in the sample you linked to, it's smaller.
I'd proceed with caution. Maybe someone has seen a version of this like the one you linked to, but I have not. I'm not aware of what other region releases for this set look like, though. Maybe it's a Korean R3?