An information processing device for processing a plurality of content files for enabling a selection of a content file suitable for a capacity of a reproduction side comprising: a metadata parsing unit configured to parse a metadata file, the metadata file including metadata about the plurality of content files containing encoded data generated by encoding image data representing the same content, the metadata for the selection of one of the content files from the plurality of content files by a receiver, the metadata including information about encoding parameters of the respective content files, the information about the encoding parameters including information indicating a parallelism type of the encoding of the image data and including identification information for determining whether the parallelism type is tile dividing and whether the parallelism type is wavefront parallel processing; a content file selecting unit configured to select one of the content files to be reproduced, in accordance with a result of the parsing performed by the metadata parsing unit and based at least in part on the information indicating the parallelism type of the encoding of the image data, and to request the selected content file from a storage location of the selected content file; and a content file reproducing unit configured to acquire the selected content file supplied in response to the request, and to reproduce the content file selected by the content file selecting unit, wherein the metadata file is a moving picture experts group - dynamic adaptive streaming over hypertext transfer protocol, HTTP, MPEG-DASH, media presentation description, MPD, file and the information about the encoding parameters is set as a value of a supplemental property. a metadata parsing unit configured to parse a metadata file, the metadata file including metadata about the plurality of content files containing encoded data generated by encoding image data representing the same content, the metadata for the selection of one of the content files from the plurality of content files by a receiver, the metadata including information about encoding parameters of the respective content files, the information about the encoding parameters including information indicating a parallelism type of the encoding of the image data and including identification information for determining whether the parallelism type is tile dividing and whether the parallelism type is wavefront parallel processing; a content file selecting unit configured to select one of the content files to be reproduced, in accordance with a result of the parsing performed by the metadata parsing unit and based at least in part on the information indicating the parallelism type of the encoding of the image data, and to request the selected content file from a storage location of the selected content file; and to select one of the content files to be reproduced, in accordance with a result of the parsing performed by the metadata parsing unit and based at least in part on the information indicating the parallelism type of the encoding of the image data, and to request the selected content file from a storage location of the selected content file; and a content file reproducing unit configured to acquire the selected content file supplied in response to the request, and to reproduce the content file selected by the content file selecting unit, wherein to acquire the selected content file supplied in response to the request, and to reproduce the content file selected by the content file selecting unit, wherein the metadata file is a moving picture experts group - dynamic adaptive streaming over hypertext transfer protocol, HTTP, MPEG-DASH, media presentation description, MPD, file and the information about the encoding parameters is set as a value of a supplemental property. <EOS>