  We present a calculation of the spectrum of low-lying D and D_s mesons
calculated on 2+1 flavor configurations with Clover-Wilson quarks generated by
the PACS-CS collaboration. S- and P-wave states are explored for pion masses
down to 156MeV, including some excited states. As a benchmark, a calculation of
the low-lying charmonium spectrum is performed. While the charmonium results
agree favorably with experiment, noticeable differences remain for charmed
mesons in channels where resonances close to multi-particle thresholds exist.
