Apparatus for recording information in information recording medium, information recording medium, method for recording information in information recording medium, program for recording information in information recording medium, and program product

摘要

A multi pulse section 30 is generated in the mark forming portion corresponding to a mark 21 having a length nTw (n>==2), where Tw represents a reference clock cycle. The multi pulse section 30 consists of pulses of the number (n-1) each having the power level a, and pulses of the number (n-2) each having the power level b (b<a), each of which is formed between the adjoining pulses having the power level a. Further, a heat blocking pulse 35 having the power level c (c<a) is generated immediately after the multi pulse section 30 . A bias section 36 having the power level d (c<d<a) is generated between the heat blocking pulse 35 and a succeeding multi pulse section 30 . The bias section 36 corresponds to a space 22 . The time length tc of the heat blocking pulse 35 is: tc>=Tw. With this arrangement, information can be precisely recorded in and reproduced from a WORM type information recording medium.