In a content reproducing apparatus for displaying three dimensional image using image data for the right eye and left eye, stored after being downsampled in order to reduce data, a high quality image is obtained even at the scene changes or in still pictures. The content reproducing apparatus includes a similar region detector (20) for detecting, for each region forming part of each of the right image and left image, a region of the same size as said each region, and having image data similar to the image data of said each region, and image interpolation data generating circuit (21) for generating interpolation data by extracting data from the similar region, and a frame synthesizing circuit (22) for interpolation the image interpolation data in the decoded image data for each eye.