  Pion emitting decays and radiative ones of D^{*+,0} and D_s^{*+} are studied.
As the result, the full-width of D^{*0} is predicted, by assuming the isospin
symmetry. In addition, the isospin non-conserving D_s^{*+} --> D_s^+ pi^0 decay
is investigated under the assumption that it proceeds through the eta-pi^0
mixing.
