  The Directed Hamilton-Waterloo Problem asks for a directed $2$-factorization
of the complete symmetric digraph $K_v^*$ where there are two non-isomorphic
$2$-factors. In the uniform version of the problem, factors consist of either
directed $m$-cycles or $n$-cycles. In this paper, necessary conditions for a
solution of this problem are given, and the problem is solved for the factors
with $(m, n)\in
\{(4,6),(4,8),(4,12),(4,16),(6,12)$,$(8,16),(3,5),(3,15),(5,15)\}$.
