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Optical disk recording device and method, recording medium and optical disk
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A technology for optical disc recording and recording devices, applied to optical recording/reproducing/erasing methods, optical recording carriers, disc-shaped recording carriers, etc., which can solve the problems that the file system cannot ensure continuous reproduction, etc.
Inactive Publication Date: 2003-08-06
PANASONIC CORP
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[0007] However, conventional recording media and file systems have a problem in that they cannot ensure uninterrupted reproduction of audio / video data (hereinafter referred to as AV data) recorded on the recording media.
[0010] As mentioned above, traditional file systems cannot ensure continuous reproduction
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[0136] Now, several embodiments are used to illustrate the optical disc and optical disc recording apparatus of the present invention using the above-listed titles.
[0140] figure 1 Represents the appearance and recording area of a DVD-RAM disc as an optical disc. As shown in the figure, the DVD-RAM disc has a lead-in area at its innermost circle, a lead-out area at its outermost circle, and a data area between them. The lead-in area records the necessary reference signal for servo stabilization during the access of the optical pickup and the identification signal to prevent confusion with other media. The lead-in area records the same type of reference signal as the lead-in area.
[0141] At the same time, the data area is divided into multiple sectors of the smallest unit that...
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Abstract
An optical disc recording apparatus for recording a video object onto an optical disc. A recording area of the optical disc is divided into a plurality of zones which each include a plurality of adjacent tracks. The optical disc recording apparatus includes: a reading unit for reading from the optical disc the sector information showing data assignment for sectors on the optical disc; a recording unit for recording the video object onto the optical disc; and a control unit for controlling the reading unit and the recording unit. The control unit detects at least one series of consecutive unassigned sectors on the optical disc by referring to the read sector information. Each series has a total size greater than a minimum size and is located within a single zone. The minimum size corresponds to a data amount that ensures uninterrupted reproduction of the video object. The control unit also controls the recording unit to record the video object into the detected series.
Description
Technical field [0001] The present invention relates to an optical disc recording device, a computer-readable recording medium recording a file management program, and an optical disc. Background technique [0002] Recently, recording media such as magneto-optical disks (MD) have been widely used for recording data read by computers. Now, due to general needs, the actual use of DVD (Digital Versatile Disk)-RAM discs is becoming a reality, and DVD-RAM will become the main recording medium of the next generation. [0003] In traditional MDs, such as HD (hard disk) or FD (floppy disk), the smallest unit for accessing data on the disk is a "sector" with several kilobytes. Each file is recorded in one or more sectors. [0004] The reading and writing of files from / on the disk is performed by the computer through the functions of the file system as part of the operating system (OS). For example, the file system is defined by ISO / IEC13346. [0005] According to the conventional technolo...
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Application Information
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