Actually, they really aren't. The discs--and the booklet--in the Universal set (at least in mine) say "Mosaic" all over them, indicate they are made in the U.S., and appear in all ways to be Mosaic products (except that "Mosaic" does not appear on the outside of the box). It appears that ALL of these sets--Mosaic and Universal--were manufactured by Mosaic, and some portion of the 10,000 to be issued are merely being distributed by Universal. Also, all indications are that the Universal sets sold in the US are perfectly legal and are being distributed in conformity with any distribution agreement Mosaic has with Universal. And if they are not, Mosaic should say so. And I agree with Michael Fitzgerald that this is a manufacturer's (whoever that may be) problem.