Information recording medium, method and apparatus for recording and reproducing information
View Patent ↗An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area.
1. An information recording medium comprising:
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;
a data area for storing user information;
a first groove area having a groove; and
a second groove area having a groove;
wherein the first lead-in information area is an area which has a first physical characteristic and on which lead-in information for recording or reproducing user information on or from the data area is to be recorded;
wherein the second lead-in information area is an area which has a second physical characteristic different from the first physical characteristic and which includes an embossed area representing lead-in information for recording or reproducing user information on or from the data area;
wherein the data area has the first physical characteristic; and
wherein the first groove area continuously connects with a front side of the embossed area, and the second groove area continuously connects with a rear side of the embossed area.
2. An information recording medium as recited in claim 1 , wherein the first lead-in area has address information including land pre-pits.
3. A method of reproducing user information from the information recording medium of claim 1 , comprising the steps of:
accessing lead-in information in the first lead-in information area or the second lead-in information area of the information recording medium; and
reproducing user information from the data area of the information recording medium in accordance with the accessed lead-in information.
4. An apparatus for reproducing user information from the information recording medium of claim 1 , comprising:
means for accessing lead-in information in the first lead-in information area or the second lead-in information area of the information recording medium; and
means for reproducing user information from the data area of the information recording medium in accordance with the accessed lead-in information.
5. A method of recording user information on the information recording medium of claim 1 , comprising the steps of:
accessing lead-in information in the first lead-in information area or the second lead-in information area of the information recording medium; and
recording user information on the data area of the information recording medium in accordance with the accessed lead-in information.
6. An apparatus for recording user information on the information recording medium of claim 1 , comprising:
means for accessing lead-in information in the first lead-in information area or the second lead-in information area of the information recording medium; and
means for recording user information on the data area of the information recording medium in accordance with the accessed lead-in information.
7. An information recording medium as recited in claim 1 , wherein the embossed area has pre-pits representing the lead-in information.
8. An information recording medium as recited in claim 1 , wherein the lead-in information represented by the embossed area includes permanent information.