JofM5,
For a CD-ROM drive to properly work in MS-DOS, it is required that the CD-ROM drivers be loaded in
both the Autoexec.bat
and Config.sys.
Below are examples of the format of how the drivers should be loaded in the autoexec.bat and config.sys.
AUTOEXEC.BAT:
LOADHIGH=C: \Windows\COMMAND\MSCDEX.EXE /D:MSCD001
CONFIG.SYS:
DEVICEHIGH=C: \CD-ROM\NEC_IDE.SYS /D:MSCD001
Bear in mind that the location and name of the relevant device driver (nnnnn.sys) will vary dependent on your configuration - e.g. it may be on the floppy disk. Also you may not be using high memory, in which case just use Load and Device.
Obviously, you will need the correct .sys driver for you CD drive.
Bootdisk.Com is an excellent resource.
SD