Provided herein is a printing apparatus having a frame image take-in means which takes in a plurality of frame images at a predetermined interval from a content file as recorded target including image information on an optical disk medium, a frame image discriminating means which discriminates whether each of the taken-in frame images is appropriate for printing on a label face by comparing each of the frame images taken in by the frame image take-in means with prior and following frame images thereof and using a discriminating result whether differences between the taken-in frame images and the prior and following frame images thereof are small, a label print data generating means which generates label print data to be printed on the label face of the optical disk medium based on frame images discriminated as appropriate for printing on the label face by the frame image discriminating means, and a label print means which prints the label print data generated on the label face of the optical disk medium.