  Inclusive charm meson production cross sections in the deep inelastic
scattering and photoproduction regimes are compared with QCD leading and
next-to-leading (NLO) calculations. The NLO predictions are significantly below
the data in some parts of the measured kinematic range. Angular distributions
of dijet events with charm show clear evidence for the existence of charm
originating from the incoming photon. The charm fragmentation function is
measured for the first time at HERA. Various fragmentation ratios and the
fragmentation fractions of the low-lying charm hadrons are determined and
compared to previous e+e- results.
