Patent ID: 7161889
Filing Date: 2007-01-09
Classification: G11B,H04N

Abstract:
1. An information recording medium on and from which information can be recorded and reproduced, the information recording medium having: a lead-in area; a first lead-in information area located in the lead-in area; a second lead-in information area located in the lead-in area; and a data area for storing data; wherein information is recorded on the first lead-in information area in an error correction block unit, and the first lead-in information area is for storing lead-in information relating to the data area; wherein an error correcting ability in the error correction block unit corresponds to an information amount of n bytes; and wherein the second lead-in information area includes a pre-pit area having information whose amount is greater than at least n bytes in the error correction block unit, and the second lead-in information area is an area for storing lead-in information relating to the data area.