Patent ID: 6321351
Filing Date: 2001-11-20
Classification: G06F,G11B

Abstract:
A method for processing data read from a DVD media containing stored data, the method comprising:reading actual data from a DVD media;computing a first correction code for said actual data;reading a second correction code from the DVD media, said second correction code pertaining to said stored data;comparing said first correction code to said second correction code to determine whether said actual data needs to be corrected;determining whether the number of errors in said actual data exceeds the number of errors that can be corrected;correcting, if said number of errors in said actual data does not exceed the number of errors that can be corrected, said actual data;counting the number of errors in said actual data that are corrected; andforming a data structure, relating to the actual data and comprising:at least one bit indicating whether errors in said actual data were corrected in the correcting step; andat least two bits indicating the number of errors corrected in the actual data.