Recording/reproducing device having plural disk units which access an information recording medium including a computer readable recording medium

摘要

There is provided an information recording/recording device that can easily modify the respective reproduction control programs and other programs of plural disk drive units simply by mounting an information recording medium in one disk drive unit. One disk drive unit uses predetermined recording information of a mounted information recording medium to rewrite a program stored in a nonvolatile memory of the one disk drive unit, and transfers a program to another disk drive unit over an interface bus to instruct program rewriting. According to the rewriting instruction from the one disk drive unit, the other disk drive unit rewrites a program stored in a nonvolatile memory thereof. If the information recording medium is reproduced in one disk drive unit, program information can be transferred to a different disk drive unit.