Patent ID: 7856443

Claim:
A method of finding at least one record in a database corresponding to a digital versatile disc, comprising: receiving unique information about the digital versatile disc, the unique information including at least one non-blank information field selected from a plurality of non-blank information fields, the plurality of non-blank information fields comprising a title of the digital versatile disc, a volume name of the digital versatile disc, time stamp information for creation of a master of the digital versatile disc, a number of titles on the digital versatile disc, a number of chapters per title on the digital versatile disc, and a number of frames per chapter on the digital versatile disc; and identifying one or more possibly matching records in a database of information about digital versatile discs using the unique information about the digital versatile disc, the identifying comprising: generating a first search key based on the unique information, generating a second search key based on at least one field from the plurality of non-blank information fields, the second search key being less specific with respect to the digital versatile disc than the first search key, comparing the first search key with records in the database, determining that the comparing does not produce a match, and in response to the determining, comparing the second search key with records in the database to identify one or more possibly matching records.