Patent ID: 7656759
Filing Date: 2010-02-02
Classification: G11B

Abstract:
1. An information recording and reproducing device comprising: a recording and reproducing portion recording and reproducing data onto and from a data-recordable information record medium, a memory for nonvolatile recording of data, and a controller controlling the whole device, wherein said controller stores a record address, indicative of a record position of said data, in said memory in a data record operation, wherein said recording and reproducing portion recording and updating a record end address on said information record medium after completion of said data recording; when said data recording is resumed after interruption of said data recording, said controller instructs said recording and reproducing portion to reproduce said record end address; said recording and reproducing portion records said record address stored in said memory onto said information record medium to update said record end address when-said record address stored in said memory and said reproduced record end address are different, said information record medium has a management region storing said management information and a data region recording said data, said data region is divided into a plurality of sectors each forming a minimum access unit, said controller stores said record address in said memory after completion of the data recording corresponding to each of said sectors, and said recording and reproducing portion further records a lead-out at a position after the last data record position on said information record medium after the completion of said data recording, and records the lead-out at a position after said data record position indicated by said record address stored in said memory when said data recording is resumed after occurrence of interruption of said data recording.