Patent ID: 6778479
Filing Date: 2004-08-17
Classification: G11B

Abstract:
A method for enabling a drive controller to recognize a media type, the drive controller capable of reading information from an optically encoded disk, the method comprising:causing the drive controller to attempt a first read operation from a first area of the optically encoded disk to generate a first data set, the first read operation reading the first data set being data stored in a first physical sector number range of the optically encoded disk; verifying that the first data set conforms to a first data structure if the first read operation is successful; obtaining a media type descriptor from the first data set if the first data set conforms to the first data structure; and obtaining a media type descriptor from a second data set read from a second area of the optically encoded disk if the first data set does not conform to the first data structure or the first read operation is not successful.