Patent ID: 6021103
Filing Date: 2000-02-01
Classification: G11B

Abstract:
An optical disk device for writing data to an optical disk having a pregap portion disposed in a head portion of a track to which a track descriptor block indicating a method of writing data to the track is recorded, said optical disk device comprising:a TDB read section for reading a write method indicated by a track descriptor block positioned on an outermost peripheral side of the optical disk thus mounted when power is supplied or the optical disk is replaced; anda TDB storage section for storing the write method read by said TDB read section,wherein when data is instructed to be written to the optical disk, it is checked whether the write method thus instructed conforms to the write method stored in said TDB storage section, and wherein the data is written to the optical disk when both write methods conform to each other and no data is written to the optical disk when both write methods do not conform to each other.