A recording apparatus for recording data of a moving image and a still image onto an optical disk, includes a converter for converting the data of the still image into moving image data in the same format as the data of the moving image when the optical disk is finalized, a controller for controlling, based on a predetermined condition, the decision of the converter as to whether to convert the data of the still image into the moving image data, and a recorder for recording the moving image data converted by the converter onto the optical disk.