Method for recovering data in disk
AssigneeSunplus Technology Co., Ltd.
InventorWen-Pin Tai
Life of this patent
Estimating the term…
Abstract
A method for recovering video data in a disk when a reading error occurs is provided. First, the disk is scanned to obtain a next writable address (NWA) of a last video chapter previously recorded into the disk. An end address of a successfully recorded video chapter is then read from a specific area of the disk and stored into a memory. Next, when a disk player/recorder is requested to read content of data according to the NWA, the disk player/recorder determines whether the content of the data is a file system. If the content of the data is not a file system, the NWA obtained by scanning the disk is replaced with the end address read from the specific area to read the file system, so as to recover the video data in the disk. Thereby, the video data in the disk can be protected.
Claims17
A method for recovering video data in a disk, suitable for recovering the video data in the disk when an error occurs, the method comprising:
- scanning the disk to obtain a next writable address (NWA) of a last recorded video chapter in the disk;
- reading content of data before the NWA of the last recorded video chapter;
- determining whether the data is a file system;
- if the data is not the file system, reading an end address of a previous successfully recorded video chapter;
- and
- replacing the NWA of the last video chapter with the end address of the previous successfully recorded video chapter to read the file system, so as to recover the video data in the disk.
A method for recovering video data in a disk, suitable for recovering the video data in the disk when a reading error occurs, the method comprising:
- reading an end address of a successfully recorded video chapter;
- and
- reading a file system according to the end address to recover the video data in the disk.
Dependencies are inferred from the claim text.