Properties ofD mesons produced in the photo-production experiment NA 14/2 at CERN are reported. The following ratios of branching fractions were measured:$$\begin{gathered} Br(D^0 \to K^ + K^ - )/Br(D^0 \to K^ - \pi ^ + ) = 0.16 \pm 0.05, \hfill \\ Br(D^0 \to K^ - \pi ^ + \pi ^0 )/Br(D^0 \to K^ - \pi ^ + ) = 4.0 \pm 0.09 \pm 1.0, \hfill \\ Br(D^0 \to K^ - \pi ^ + \pi ^ + \pi ^ - )/Br(D^0 \to K^ - \pi ^ + ) \hfill \\ = 1.9 \pm 0.25 \pm 0.20 \hfill \\ \end{gathered} $$ $$\bar K$$.TheD0→K−π+π+π− decay was analysed and the contribution of resonant subprocesses found consistent with 1ρ0 and 0.23$$\begin{gathered} Br(D^0 \to K^ + K^ - )/Br(D^0 \to K^ - \pi ^ + ) = 0.16 \pm 0.05, \hfill \\ Br(D^0 \to K^ - \pi ^ + \pi ^0 )/Br(D^0 \to K^ - \pi ^ + ) = 4.0 \pm 0.09 \pm 1.0, \hfill \\ Br(D^0 \to K^ - \pi ^ + \pi ^ + \pi ^ - )/Br(D^0 \to K^ - \pi ^ + ) \hfill \\ = 1.9 \pm 0.25 \pm 0.20 \hfill \\ \end{gathered} $$ $$\bar K$$*0π+ was measured to be 0.14±0.04±0.04.