Originally Posted by DB A
use imgmount with your image.

I tried:

dosbox E:\games\roa\riva\riva.exe -c "imgmount d E:\games\roa\img\970220_1739.mdf -t iso"

It also didn't work. I remember with the older version of dosbox I had to make sure I got the label of the disk right (as in my previous post) but it doesn't seem to work either way now. I guess I should submit a bug to the dosbox forums.