Version 0.65.0 (04/03/03): This is the initial release of Mpvideo. Mpvideo is a Python based GUI for interactive crystal alignment that is intended for use on crystallography beamlines. The included 'align_crystal' program displays a continuously updated video image of the crystal. Left clicking on this window causes the clicked position to be moved to the center of rotation by an MX-controlled goniostat. The expected center of rotation is shown on the screen via a set of red cross-hairs which can be repositioned on the screen by right clicking on the desired center of rotation. 'align_crystal' also has a set of buttons that can be used to move both phi and omega to known positions separated by 90 degrees. 'align_crystal' also continuously displays the positions of the motors used by the goniostat.