A recording apparatus of moving image data generates first moving image data and second moving image data having less number of pixels than the first moving image data, outputs the generated moving image data by using a plurality of output channels which conform with a predetermined format, determines the number of the second moving image data to be generated on the basis of an output state of the moving image data which is output by using the output channels in the case where the first moving image data is output in accordance with the predetermined format, and generates the second moving image data of the determined number in parallel with the outputting of the first moving image data.