1. A digest creating device, comprising: an input unit for inputting replay information, the replay information including: (a) replay broadcasting section information for specifying a broadcasting time zone of a replay video/sound; (b) replay reference section information for specifying an actual filming/recording time zone of the replay video/sound, and (c) digest condition information for designating a length of a digest; a replay importance degree computing unit that computes an importance degree of the replay video/sound by use of at least one of a plurality of parameters, the plurality of parameters including: (1) a number of replays, (2) an interval between predetermined positions of the replay broadcasting section and the replay reference section, (3) a time length of replay broadcasting, (4) a speed of replay broadcasting, and (5) a number of cut switches of the replay, wherein the parameters are obtained from the replay information, and the replay information is output with the importance degree in which the importance degree is added to the replay information; and a digest creating unit that receives the replay information with the importance degree and the digest condition information, and sets the replay video/sound as a digest candidate among a plurality of digest candidates to form a group of digest candidates; wherein the group of digest candidates includes a plurality of combinations of digest candidates and a combination of digest candidates is selected from the plurality of combinations based on: (i) a composite importance degree of the combination of digest candidates that is computed from the importance degrees of each digest candidate and (ii) a range of the designated length of the digest.