An information processing device comprising a reproduction unit configured to; acquire from a file a track storing encoded information on a whole base layer image and tracks storing information on each of partial areas of the whole base layer image, extract a first set of encoded data from the track storing encoded information on a whole base layer image and tracks storing information on each of partial areas of the whole base layer image, and decode the first set of extracted data to generate a decoded base layer image; and acquire from the file a track storing encoded information on a whole enhancement layer image and tracks storing information on each of partial areas of the whole enhancement image, extract a second set of encoded data from the track storing encoded information on a whole enhancement layer image and tracks storing information on each of partial areas of the whole enhancement image, perform a prediction between layers using the decoded base layer image to decode the second set of extracted data to generate a decoded enhancement layer image; wherein the file stores, in the track storing encoded information on a whole base layer image, encoding information indicating an encoding system of the base layer, the file stores, in each of tracks storing information on each of partial areas of the whole base layer image, encoding information indicating that the corresponding track stores only the information on the corresponding partial area of the base layer, the file stores, in the track storing encoded information on a whole enhancement layer image, encoding information indicating an encoding system of the enhancement layer, and the file stores, in each of tracks storing information on each of partial areas of the whole enhancement image, encoding information indicating that the corresponding track stores only the information on the corresponding partial area of the enhancement layer. acquire from a file a track storing encoded information on a whole base layer image and tracks storing information on each of partial areas of the whole base layer image, extract a first set of encoded data from the track storing encoded information on a whole base layer image and tracks storing information on each of partial areas of the whole base layer image, and decode the first set of extracted data to generate a decoded base layer image; and acquire from the file a track storing encoded information on a whole enhancement layer image and tracks storing information on each of partial areas of the whole enhancement image, extract a second set of encoded data from the track storing encoded information on a whole enhancement layer image and tracks storing information on each of partial areas of the whole enhancement image, perform a prediction between layers using the decoded base layer image to decode the second set of extracted data to generate a decoded enhancement layer image; wherein the file stores, in the track storing encoded information on a whole base layer image, encoding information indicating an encoding system of the base layer, the file stores, in each of tracks storing information on each of partial areas of the whole base layer image, encoding information indicating that the corresponding track stores only the information on the corresponding partial area of the base layer, the file stores, in the track storing encoded information on a whole enhancement layer image, encoding information indicating an encoding system of the enhancement layer, and the file stores, in each of tracks storing information on each of partial areas of the whole enhancement image, encoding information indicating that the corresponding track stores only the information on the corresponding partial area of the enhancement layer. <EOS>