A recording apparatus for recording contents, comprising: - a recording control section configured to record contents to a recording medium of the recording apparatus; - a selection section configured to select, in reaction to a selection operation of a user, a content recorded on said recording medium of the recording apparatus as a selected target content being content of which digest information summarizing the target content is to be created; - a creation section configured to create the digest information summarizing said selected target content; - a digest information transfer control section configured to transfer to a portable device a digest information set constituted by said digest information about said selected target content and by identification information identifying said selected target content, said digest information and said identification information being associated with each other; - an operation information reception control section configured to receive from said portable device an operation information set constituted by said identification information and by operation information about the operation performed on said portable device with regard to said digest information about said selected target content identified by said identification information, said identification information and said operation information being associated with each other; and - an operation information reflection section configured to perform a process on said selected target content identified by said identification information in said operation information set, said process corresponding to said operation information associated with said identification information. - a recording control section configured to record contents to a recording medium of the recording apparatus; - a selection section configured to select, in reaction to a selection operation of a user, a content recorded on said recording medium of the recording apparatus as a selected target content being content of which digest information summarizing the target content is to be created; - a creation section configured to create the digest information summarizing said selected target content; - a digest information transfer control section configured to transfer to a portable device a digest information set constituted by said digest information about said selected target content and by identification information identifying said selected target content, said digest information and said identification information being associated with each other; - an operation information reception control section configured to receive from said portable device an operation information set constituted by said identification information and by operation information about the operation performed on said portable device with regard to said digest information about said selected target content identified by said identification information, said identification information and said operation information being associated with each other; and - an operation information reflection section configured to perform a process on said selected target content identified by said identification information in said operation information set, said process corresponding to said operation information associated with said identification information.