Mounting of a CD-ROM drive
Perhaps you've got a CD-rom lying around with a cool DOS game on it. Installing of the game in Windows doesn't work, but you can do that in DOSBox instead. Mounting of a CD-rom drive (in this example the i: drive) goes as follows:

• Type mount d i:\ -t cdrom and press enter
• If the game needs a CD label for installation, type mount d i:\ -t cdrom -label CDLABEL and press enter (replace CDLABEL with the label of your CD)

If the mounting of your CD-rom doesn't work, you can try and create an ISO image of your CD.

Mounting an image (ISO, CUE, IMG)
There are several options to mount an image with DOSBox. An image is a file that contains all contents of a CD or DVD. This image file usually has a .ISO extension, but sometimes you'll encounter an IMG or CUE image. You can mount the image file directly in DOSBox:

• In this example, the ISO image game.iso is in c:\games
• In DOSBox, type imgmount e c:\games\game.iso -t iso and press enter
• In DOSBox, type e: and press enter to go to the  image

You can also mount the ISO as a CD-ROM drive in your system and mount this CD-ROM drive in DOSBox:

• In Windows 10 and 11 you can right click on the image.iso file in explorer and choose mount. In older operating systems you'll have to mount the image to your system with software like Virtual Clone Drive. In this example the virtual CD drive will be F:
• In DOSBox, you mount the virtual F: drive as a normal CD drive in DOSBox with mount d f:\ -t cdrom and press enter
• In DOSBox, type d: and press enter to go to the mounted image