4. The computer readable recording medium according to claim 1 , wherein the determining compares both a character recognition result acquired from images of video data and that acquired from speeches of the video data with the search word for determination.
4. The computer readable recording medium according to claim 1 , wherein the determining compares both a character recognition result acquired from images of video data and that acquired from speeches of the video data with the search word for determination. 6. The computer readable recording medium according to claim 4 , wherein the registering the search word as meta-information registers the search word as secondary meta-information of the video data if one of the character recognition result acquired from images and that acquired from speeches matches the search word.