Patent ID: 7639923
Filing Date: 2009-12-29
Classification: G11B,H04N

Abstract:
1. A recording method for recording a first digital stream and first playlist information on a recording medium having a package area using a computer-based recording apparatus, wherein identifying the package area by a predetermined file path; generating, with a generating unit, the predetermined file path to contain disc identification information, the disc identification information indicates, to a playback apparatus, a read-only optical disc to be used in combination with the package area by the playback apparatus to generate a virtual package; and providing, in the first playlist information that identifies by showing correspondence between a file in the package area and a file on the optical disc, a second digital stream that is recorded on the optical disk and is to be played back in synchronization with the first digital stream, wherein the first playlist information includes information defining a playback path comprising a playback section of the first digital stream and a playback section of the second digital stream, and the first playlist information is used in place of second playlist information recorded on the optical disc, by the playback apparatus to generate the virtual package, wherein the virtual package is generated by replacing a file included in the optical disc with a corresponding file that is (i) contained in the package area and (ii) accessed by a same file name as that used to access the corresponding file included in the optical disc.