Patent ID: 7408859
Filing Date: 2008-08-05
Classification: G11B

Abstract:
1. A digital signal recording disc comprising: a post cutting area, a lead-in area, and a data area, the data area storing main information, the lead-in area including a control area having sectors for recording copyright information which contains an internationally-registered SID code word and a word of a copy inhibition code, the SID code word representing a disc producer, wherein the SID code word is collated with internationally-registered reference SID code words by a reproducing apparatus to be referred to when the main information is played back by the reproducing apparatus, wherein the word of the copy inhibition code is recovered by the reproducing apparatus, and a decision about whether or not the recovered word of the copy inhibition code indicates copy inhibition is performed by the reproducing apparatus, wherein the SID code word is referred to before the main information is played back by the reproducing apparatus, and wherein the control area includes a RAM area for recording at least the SID code word.