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Recording device, recording method, and computer program

A recording device and recording surface technology, which can be used in optical recording/reproducing/erasing methods, data recording, optical recording systems, etc., and can solve problems such as reduced reproduction interchangeability

Inactive Publication Date: 2009-08-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that the device corresponding to this standard cannot process and stops operating, and the regeneration compatibility is reduced.

Method used

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  • Recording device, recording method, and computer program
  • Recording device, recording method, and computer program
  • Recording device, recording method, and computer program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0079] 1-1. Write-once recording medium

[0080] figure 1 The structure of the optical disc 1 of this embodiment is shown. The domain structure of Disc 1 is the same as Figure 19 The area structure of the conventional optical disc 21 is the same.

[0081] The optical disc 1 is formed by forming a spiral track groove 2 on a disc-shaped chassis. In the track groove 2, a plurality of blocks 3 are formed. The block 3 is a unit of error correction, and is the smallest unit used for recording and reproducing information.

[0082] The optical disc 1 has a lead-in area 4 , a user data area 5 and a lead-out area 6 . Writing and reading of user data are performed to the user data area 5 .

[0083] The lead-in area 4 and the lead-out area 6 are redundant areas in which track grooves are provided so that when an optical head (not shown) accesses one end of the user data area 5, even if the optical head exceeds the user data area 5, tracking can be performed. . Since user access (...

Embodiment approach 2

[0158] In this embodiment, an apparatus, a method, and the like for reading management information from an optical disc in a non-standard state with low reproduction compatibility mentioned in the background art will be described. For example, in the playback device of this embodiment, by executing the Figure 13 Steps 603 and 604 of Figure 14 The steps shown in order to achieve that processing. Hereinafter, the configuration and operation of the playback device according to this embodiment will be described.

[0159] 2-1. Write-once recording medium

[0160] The structure of the write-once recording medium of the present embodiment is the same as that of the optical disc 1 of the first embodiment. Therefore, its description is omitted here.

[0161] 2-2. Regeneration device

[0162] The optical disc device 500 is connected to an I / O bus 560, and the I / O bus 560 is connected to a higher-level control device (not shown). The upper control device is typically a host compu...

Embodiment approach 3

[0211] In this embodiment, an apparatus, a method, and the like for reading management information from an optical disc in a non-standard state with low reproduction compatibility mentioned in the background art will be described. A typical example of this disc is the same as the Figure 16 The same as described in (c) and (d). The regenerative device executes the Figure 15 The procedure shown implements such processing. Hereinafter, the configuration and operation of the playback device according to this embodiment will be described.

[0212] 3-1. Write-once recording medium

[0213] The write-once recording medium of this embodiment is the same as that of Embodiment 1 except for the marker area 7 and the TDMA area 10 . Therefore, the marker area 7 and the TDMA area 10 will be described in detail below, and other descriptions will be omitted.

[0214] Figure 17 An example of the data structure of the TDMA area 10 of this embodiment is shown. The TDMA area 10 is compo...

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Abstract

Provided is a recording device which creates an optical disc recognized as a finalized disc even if an unexpected power supply interruption or a significant write error has occurred before a finalization process is completed. The recording device records information in a write-once type recording medium having a user data region, a first management information region, an indicator region, and a second management information region in this order on the recording plane. The recording device includes an optical head and a control unit which instructs the optical head to recording information. The control unit makes an instruction to record the management information in the first information region, an instruction to record the indicator information indicating whether the management information has been recorded, in the indicator region, and an instruction to record the management information identical to the one recorded in the first management information region, in the second management information region.

Description

technical field [0001] The present invention relates to a recording device and recording method for recording information on a write-once recording medium, and a reproducing device and reproducing method for reproducing information from a write-once recording medium. Background technique [0002] An optical disc is widely known as an information recording medium exchangeable between a plurality of devices. Optical discs can be roughly divided into three types: read-only type, write-once type, and rewritable type. In write-once discs, data can only be written once to the same place on the medium. For example, CD-R and DVD-R are write-once optical discs. In rewritable optical discs, data can be written to the same place on the medium multiple times. For example, CD-RW and DVD-RAM are rewritable optical discs. [0003] Since an optical disc is an exchangeable information recording medium, for example, scratches or dust adhere to the surface during exchange or during exchang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/12
CPCG11B2020/1873G11B2020/10861G11B7/00736G11B20/1217G11B7/0037G11B27/329G11B7/0045G11B7/007
Inventor 下田大辅伊藤基志
Owner PANASONIC CORP