Method and device for simulating a multi-layer optical storage medium

A technology of optical storage media and multi-layer media, which is applied in the field of analog multi-layer optical storage media, audio-visual playback and/or recording equipment, and can solve the problem of time-consuming re-encoding, reduced playback capabilities, and accurate copying of single-layer DVDs and double-layer DVDs. And other issues

Inactive Publication Date: 2007-08-01
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recoding of such data is time consuming
[0005] Therefore, a single layer DVD cannot be used to make an exact copy of a dual layer DVD according to the prior art
Additionally, because dual-layer recordable and / or rewritable (-R) discs are less reflective than single-layer DVD-R, dual-layer recordable discs reduce the performance of copies made on the basis of dual-layer discs on standard DVDs. Playability on the player

Method used

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  • Method and device for simulating a multi-layer optical storage medium
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  • Method and device for simulating a multi-layer optical storage medium

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Embodiment Construction

[0025] According to one embodiment of the present invention, there is provided a disk drive 40 for optical media as shown in FIG. Exact copies, such as DVD-style discs. The drive 40 has a tray 41 for inserting a disk into the drive. Alternatively, the drive may have an automatic disc changer system into which multiple discs may be inserted, automatically one disc at a time, or alternatively, the discs may be placed in a cartridge In a cartridge device, which protects the disk from being read from outside the drive, the cartridge replaces the aforementioned tray of the drive. In addition, the drive 40 has a processing device 42 (located inside the housing shown) for processing the software that controls the drive 40 .

[0026] However, the case where the optical medium has two layers is given only for easy understanding of the present invention. The same principles of the present invention can be applied to multilayer optical media. Additionally, other optical media like Bl...

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Abstract

A method, a device, and a computer-readable medium for simulating a multilayer optical storage medium are disclosed. A multiple-layer optical storage medium is simulated by using a set of multiple single-layer media, wherein the number of multiple single-layer media is equal to or smaller than the number of multiple layers of the multiple layer optical storage medium, and each single layer of the set of multiple single-layer media comprises a copy of the corresponding layer of the multiple-layer medium. This is transparent to any application software accessing a device having such a single-layer medium inserted therein by the drive reporting to the application that a multi-layer optical storage medium has actually been inserted into the device for reading or writing. The device may be comprised in an audio-visual player and / or a recorder such as a DVD recorder.

Description

technical field [0001] The present invention generally relates to the field of optical storage media. In particular, the present invention relates to methods and devices for simulating multi-layer optical storage media and, in a particular embodiment, to audiovisual playback and / or recording devices comprising such devices. Background technique [0002] Optical storage media are widely used to store huge amounts of digital information, such as music, video, images or digital data. For example, video content may be provided on DVD (Digital Versatile Disc) available, a single layer DVD having a storage capacity of 4.7GB, and a dual layer DVD, a multilayer DVD having two layers, having a total storage capacity of 9.4GB. Recordable DVDs in use today are generally single-layer DVDs because recorders and recordable media for dual-layer DVDs are much more expensive. Therefore, a known solution is to copy a dual-layer DVD onto two single-layer DVDs. [0003] A commercially availa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/00G11B27/034G06F3/06
CPCG11B2220/235G11B27/002G11B27/034G11B20/10G06F3/06
Inventor J·F·P-M·弗林茨A·F·W·高德德博雷加德
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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