Patent ID: 8666232

Claim:
An image sound play reproducing apparatus for reproducing an AVI file from a recording medium, comprising: a reading element that reads information recorded in the recording medium; and a controller element that controls the reading element, wherein the AVI file comprises a plurality of AVI chunks, each of the AVI chunks comprising an idx1 chunk, an image chunk, and a sound chunk, and wherein the controller element performs: a checking that checks whether or not an instruction for a time search is issued; an estimation that, when the checking finds that an instruction for a time search was issued, estimates “the number of sound chunks in one AVI chunk”; a first determination that determines, based on a result of the estimation, in which AVI chunk a sound chunk for the time search was included; and a second determination that makes the reading element read an idx1 chunk in the “determined AVI chunk” without making the reading element read an idx1 chunk in an AVI chunk other than the “determined AVI chunk,” and determines a reproducing start position that corresponds to the time search.