US 2010/0074071 A1 · METHOD FOR READING DISK MANAGEMENT DATA OF AN OPTICAL DISK

Abstract

The invention provides a method for reading disk management data of an optical disk. In one embodiment, the disk management data comprises data layout information of the optical disk, and a plurality of disk management data copies of the disk management data is stored on the optical disk. First, a first disk management data copy selected from the plurality of disk management data copies is read from the optical disk. An accuracy measure of the first disk management data copy is then calculated to determine whether the accuracy measure of the first disk management data copy is acceptable. When the accuracy measure of the first disk management data copy is acceptable, the optical disk is accessed according to the first disk management data copy.

Claims24

Dependent claims

A method for reading disk management data of an optical disk, wherein the disk management data comprises data layout information of the optical disk, and a plurality of disk management data copies of the disk management data is stored on the optical disk, comprising:

reading a first disk management data copy selected from the plurality of disk management data copies from the optical disk;
calculating an accuracy measure of the first disk management data copy;
determining whether the accuracy measure of the first disk management data copy is acceptable;
and
when the accuracy measure of the first disk management data copy is acceptable, accessing the optical disk according to the first disk management data copy.

2 more elements

reading a first disk management data copy selected from the plurality of disk management data copies from the optical disk;
reading a second disk management data copy selected from the plurality of disk management data copies from the optical disk;
comparing the first disk management data copy with the second disk management data copy;
determining whether data of the first disk management data copy and the second disk management data copy are identical;
and
when data of the first disk management data copy and the second data copy are identical, accessing the optical disk according to the first disk management data copy or the second data copy without reading the other disk management data copies.

3 more elements

Dependencies are inferred from the claim text.

Method for reading disk management data of an optical disk

Life of this patent

Method for reading disk management data of an optical disk

Life of this patent

Abstract

Claims24