I question that being true Baltic Birch right off the bat. I saw this post and immediately called my supplier to make sure what I thought was correct.
By definition Baltic Birch plywood is unique because of it's all-birch veneer core that's cross-banded and laminated with
EXTERIOR grade glue. Otherwise its NOT Baltic Birch.
It seems to me the only true Baltic Burch they sell are the 60"x60" sheets. The rest is just Birch ply. If it not exterior rated adhesive(even marine grade) it's not Baltic Birch.
If you look at the edge of the ply and it couldn't be used for drawer edges it's more than likely a Chinese knock off . If the veneer layers are uneven or cross over each other, it's not Baltic birch. Getting 4x8 sheets in true Baltic Birch isn't easy, most of its the 5'x5' sheets. And when it's in a 4x8 it's very expensive. For me it's well worth it, I use Baltic Birch and Marine Ply everyday.
http://www.woodworkerssource.com/blog/tips-tricks/your-ultimate-guide-to-baltic-birch-plywood-why-its-better-when-to-use-it/
Again, Birch Ply is Not Baltic Birch and I believe many places incorrectly sell them interchangeably, especially when we look at online stores.