Has to be. There has been no announcement concering the anime OST yet, at least that I've seen. I'm assuming (since both the ED and the OP are so) it will be published under Geneon's 'new' label (well, coding) GNCX - the OP were GNCX-1 and GNCX-2 respectively; I would assume the OST would probably be GNCX-3. Nowhere to be found yet, more's the pity. So as soon as that catalogue number appears, I'm guessing it will be the OST.
Oh yes! Almost forgot - eMule = bad.
This is much better.
-Andiyar