Short segment on Radio France on Proust's rejection by Gallimard, account of the many revisions Proust made to the MS once accepted for publication and typeset (he apparently made significant changes to FIVE galleys).  The text originally submitted to Gallimard was a "dactylograph" which did not have the now famous first line (Longtemps, je me suis couché de bonne heur.) - instead there was a rather long and not very interesting sentence setting the scene. It sounds as though the famous line did appear, but was written in as an interlinear note on the dactylograph.

The whole thing here.