Abstract: A broadcast program receiving and recording device which identifies songs and commercials within the recorded content by searching the content for repeating segments, and bookmarking segments that substantially duplicate other segments as being either songs (if longer than about two minutes) or commercials (if shorter than about two minutes). Repeating duplicate segments are identified by using a Haar wavelet transform to identification values that are placed in a searchable database for comparison with identification values representative of other content. Bookmarking records are used to identify repeating segments.