Abstract: A display apparatus includes a time difference calculator to calculate, according to temporal information of first and second contents, a time difference between creation time of the first content and creation time of the second content, a correlation value calculator to calculate, according to the calculated time difference and a given calculation formula, a correlation value for the temporal information of the first and second contents, a symbol generator to generate a symbol representing the calculated correlation value, a thumbnail generator to generate thumbnails representing the first and second contents, and a display controller to display a thumbnail view showing the thumbnails with the generated symbol arranged between the thumbnails.

Abstract: A frame-frequency converting apparatus acts on an input video signal resulting from 2-3 conversion of original picture information. Fields represented by the input video signal are rearranged, and thereby the input video signal is converted into a rearrangement-resultant video signal. Every pair of an odd field and a subsequent even field represented by the rearrangement-resultant video signal originate from a same frame represented by the original picture information. The rearrangement-resultant video signal is processed into a combination-resultant video signal, and specifically every pair of an odd field and a subsequent even field represented by the rearrangement-resultant video signal are combined into a frame represented by the combination-resultant video signal. Frames represented by the combination-resultant video signal are thinned out, and thereby the combination-resultant video signal is converted into a conversion-resultant video signal which has a predetermined frame frequency.