I agree, it sounds new to me (at least I'm hoping!!). And I would think that Collage would state that in the description if it were a compilation since they're normally pretty good about informing buyers of that kind of stuff. If your a member of Collage's forum, I think there is a place where you can post questions to Collage (I'm not a member there, but I sometimes check out their forum). You could ask them, and then let us know!
ETA: I just looked at Collage and the description did use the word "new", so hopefully that's true!! If so, YIPPEE!!!