Patent Number: 7,821,896

Title: Data recording/reproduction for write-once discs

Abstract: A recording method of the present invention includes the steps of: receiving a write instruction which specifies at least a logical sector in which data is to be written; determining whether the logical sector specified by the write instruction corresponds to a recorded physical sector or an unrecorded physical sector (S1111); when it is determined that the logical sector specified by the write instruction corresponds to an unrecorded physical sector, writing the data into the unrecorded physical sector (S1112); and when it is determined that the logical sector specified by the write instruction corresponds to a recorded physical sector, writing the data into an unrecorded physical sector other than the recorded physical sector (S1113), generating a remapping table including remapping information which remaps an original address of the recorded physical sector to a remapping address of the selected physical sector, and writing the remapping table on the write-once disc (S1114).

Inventors: Gotoh; Yoshiho (Osaka, JP), Buban; Garret J. (Carnation, WA), Nagar; Rajeev Y. (Sammamish, WA), Havewala; Sarosh C. (Redmond, WA), Thind; Ravinder S. (Kirkland, WA), Ghotge; Vishal V. (Seattle, WA)

Assignee: Panasonic Corporation

International Classification: G11B 7/00 (20060101)

Expiration Date: 2018-10-26 0:00:00