Patent ID: 7839755

Claim:
A recording medium comprising: a first area and a second area, wherein the first area includes: a first reproduction area storing a plurality of first reproduction information units, which include uncompressed information, to reproduce a plurality of first contents; and a first control area storing first control information for reproduction controlling the plurality of first reproduction information units; and wherein the second area includes: a second reproduction area storing one or more second reproduction information units, which include compressed information, to reproduce one or more second contents; and a second control area storing second control information for reproduction controlling the one or more second reproduction information units; and wherein the plurality of first contents in the first reproduction area include contents which are same as all of the second contents in the second reproduction area and other contents which are not same as any of the second contents in the second reproduction area; the second control area includes corresponding relationship information for indicating a corresponding relationship between the second contents and the first contents, which are same as all of the second contents; the first area and the second area are formed in one said recording medium.