Those serial-numbered inserts in Square Enix albums

[Rrolack]

If you own at least a few Square Enix albums, you might have noticed that each album includes a serial-numbered insert with the album's catalog number.

Does anyone know why Square Enix includes these? I'd thought it might be an anti-bootlegging mechanism of some kind, though I couldn't say for sure.

Interestingly, in cataloging the album I own, I've noticed that for whatever reason, the event-only albums consistently lack this insert.

[Andvari]

those are for getting stuff off of the square enix japan store.

[Rrolack]

Originally Posted by Andvari

those are for getting stuff off of the square enix japan store.

I see; so it sounds like they're guarding against copying the inserts.