The BaBar collaboration, consisting of 554 physicists from around the
world, have commissioned an experiment that, since 1999, has collected
data on 80 million charm hadron pairs produced by the PEP-II
asymmetric electron-positron storage ring at SLAC. This huge sample
of charm quark particles has allowed the collaboration to perform
studies of unprecedented precision on the manner in which charm mesons
and anti-mesons mix. Presented in this talk are their latest results
on limits on D meson mixing.