Abstract: A method and apparatus for writing data to a rewritable ultra-speed disc using an optimum pulse at a write speed of the disc, based on Absolute Time in Pre-groove (ATIP) information. The method includes: reading a disc code from the disc; determining a write speed of the disc from the read disc code; and writing data to the disc. The writing is at the determined write speed and according to a write strategy when the write strategy for the lead-in area is determined to be present, and is according on a default write strategy when the write strategy for the lead-in area is determined not to be present.

Abstract: A method and apparatus for writing data to a rewritable ultra-speed disc using an optimum pulse at a write speed of the disc, based on Absolute Time in Pre-groove (ATIP) information. The method includes: reading a disc code from the disc; determining a write speed of the disc from the read disc code; and writing data to the disc. The writing is at the determined write speed and according to a write strategy when the write strategy for the lead-in area is determined to be present, and is according on a default write strategy when the write strategy for the lead-in area is determined not to be present.

Abstract: An apparatus and a method of determining an optimum recording speed for a medium in a disc drive device, the method includes inserting a medium into the disc drive device, determining when disc characteristic information, including a manufacturer code and a type code indicating recording characteristics of the medium, is registered in the disc drive device; and when the disc characteristic information is not registered in the disc drive device, controlling maximum recording speed and target optimum power control power for recording on the medium, according to the type code of the medium.