AraBoo,
You can find free and premium files in the Forum Library
http://library.brillkids.com/When you are in the library, simply chose the category you are interested in, at the top you will see filtering option -- you can filter lessons in category by language, version and cost. So you can chose to look at free library materials or premium ones. Chose premium ones (lets say 100 points) and you will have the list of premium files in that category. You will see something like this
http://library.brillkids.com/library.php?cid=1&tid=6&lid=&version=&cost=100 When you get premium file, your points will get deducted from your account. As a rule premium files are higher quality and adhere to BK standards -- audio and visual element is present.
When files are uploaded by the members of our community, they are always free, once they reach 100 downloads mark, we review them and decide what kind of status to assign to them -- premium 100, 200, 300 or leaving them as a free download
Hope I was able to answer your question!