Hello So here is the ATAPI CDROM Driver for MINIX You have to copy with dosread : the file: in: -aexplore.c /usr/src/commands/simple -acdplay.c /usr/src/commands/simple -atapi.c /usr/src/kernel -atapi.h /usr/include/minix and Modify the content by comparing using VI editor : the file: in directory: with the file: Makefile /usr/src/commands/simple Makecmd Makefile /usr/src/kernel Makekern ioctl.h /usr/include/sys ioctl.h config.h /usr/include/minix config.h