I just placed an order for the Level 3 Lakota Language Text book.
Will ( at LLC ) explained to me that a CD will be coming out soon with the level 3 text book.
The url for the LLC is http://www.lakhota.org/
I think it is better to order right from LLC as they ship all over the world, where maybe places like Amazon do not.
If you get a chance, please check out the LLC page and see all the nice things they are selling.
While I was at it, I ordered a lot of other things, including the children stories.
These stories are written in both Lakota and English and you can get a CD to go with them ( which I did)
I think this is a great way to further learn Lakota.