Method of adjusting write strategy of recordable disc

A method of adjusting a write strategy of a recordable disc, comprising steps of:

• generating m test patterns on a power calibrating area of the recordable disc according to m write strategies and m write powers;
• temporarily storing the m jitter values and the corresponding m write strategies and the corresponding m write powers;
• selecting the smallest jitter value among the m jitter values, and its corresponding write strategy and corresponding write power;
• and
• defining the corresponding write strategy is an optimal write strategy and defining the corresponding write power is an optimal write power;
• wherein a first write strategy is generated prior to a second write strategy among the m write strategies, and the second write strategy is generated according to a first Pit-to-Land Inter-Symbol Interference table and a first Land-to-Pit Inter-Symbol Interference table which are established by measuring a first test pattern generated by the first write strategy.

A method of adjusting a write strategy of a recordable disc, comprising steps of:

• forming a plurality of Pits and Lands with different time lengths on the recordable disc by using a first write strategy and a first write power;
• establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring these Pits and Lands;
• generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table;
• generating an updated overdrive power by adjusting an overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table;
• and
• defining a second write strategy according to the updated timing parameter set and the updated overdrive power.