DISC-SHAPED INFORMATION RECORDING MEDIUM, RECODING METHOD AND REPRODUCTION METHOD THEREOF, INFORMATION RECORDING DEVICE, AND INFORMATIONREPRODUCTION DEVICE THEREOF

摘要

A reproduction standard model for guaranteeing real time recording on a disc - shaped information recording medium includes a pickup (102) for reading out real time data from the disc-shaped information recording medium, a buffer memory (103) for temporarily holding the real time data which has been read out by the pickup, and a decoding module (104) for reading out the real time data from the buffer memory (103) and processing the data. The access time Tacc of the reproduction standard model is represented by the equation as follows: Tacc = A.cndot.dN + Trev + B wherein dN is a difference in the rpm of the disc-shaped recoding medium, Trev is a rotation wait time at the access target position, and A and B are constants.