  We summarize the general results of El Karoui [1981] on optimal stopping
problems for processes which are measurable with respect to
Meyer-$\sigma$-fields. Meyer-$\sigma$-fields are due to Lenglart [1980] and
include the optional and predictable $\sigma$-field as special cases. Novel
contributions of our work are path regularity results for Meyer measurable
processes and limit results for Meyer-projections. We will also clarify a minor
issue in the proof of the optimality result in El Karoui [1981]. These
extensions were inspired and needed for the proof of a stochastic
representation theorem in Bank and Besslich [2018a]. As an application of this
theorem, we provide an alternative approach to optimal stopping in the spirit
of Bank and F{\"o}llmer [2003].
