How does someone tell the difference between bootlegs and real?

[Mari-chan]

Oh... the Bootlegs. WEll.. I also tried someday to buy Ayu CD's on Ebay.
Mostley, you can buy there CD's from Miya... so.. Bootlegs.
So.. I gave up searching there.
I also know about Yesasia and so on. But.. to transfer money from Germany to abroad, is really really expensive.
And I never found a shop with an german account. (-.-)