Freesound Forums

Sorry I am new to all this... I would like to know please if I am able to put some of the freesounds on my music C.D. I play the native American flute and other wooden flutes and create relaxation c.d.s for sale...As I have never used sound effects from the web before and only just had my flute playing on the c.d.s ...I would like to know if I can use the freesounds? It is my understanding also that I put the freesound website on my c.d. covers.. Do I need to pay licence fees or royalty fees etc to use some sounds.?

As I said I am very new to all this and don't want to do anything wrong.

http://www.freesound.org/legal.php