Abstract: For driving a video record on a video player use can be made of a clamping device which comprises a drive spindle on which record supporting means are disposed which inter alia comprise: a centering member, having a centering surface whose transverse dimension varies from smaller than to greater than the diameter of the record hole, which centering surface, also during operation, co-operates with the edge of a record hole; a record loading device which during operation presses the edge of the record hole against the centering surface; and record carrying means which frictionally co-operate with the video record and which are disposed at some radial distance from the centering member.

Abstract: A video disc player is provided with a stabilizing disc which during playing is disposed at a small distance above the video disc, air being admissible through an inlet restriction between the stabilizing disc and the video disc so that locally a sub-atmospheric pressure is produced as a result of the centrifugal pumping action of the video disc. In order to prevent the video disc from being drawn along when the stabilizing disc is moved upwards, an air by-pass passage is provided which via air-valve means can be opened when playing of the video disc is terminated, so as to admit an increased air stream between the stabilizing disc and the rotating video disc in order to at least substantially eliminate the prevailing sub-atmospheric pressure.