Ditto…One problem is the ever changing media format. Another is the installation that requires each disk to be inserted in the A drive. DosBox, which I know almost nothing about, may take care of the second problem.
If you had the source code on paper that would be nice. The only thing I can think of is to try to move it to a newer media like CD, DVD or Flash drive. This is easier said than done. Most new computers do not have 3 1/4 disk drives but they do have USB 2.0 for Flash / Thumb drives. The old computers do not have flash drives. I have pulled the hard drive out of the old computer and set it as a 2nd drive to my main hard drive. You have to know a little about drive installation. But if your old drive does not use the 40 pin setup it would be harder to do this. I have an old 486 with a 5 1/2 drive but the hard drive is “scuzy” and won’t install in my newer computer.
This all said, unless someone can can add more, were in the same boat. I have four cases of 5 1/2 disk with games of all types. It is hard for me to tell the difference between the many different types of 5 1/2 drives. (single sided, double density…)
Good Luck and let me know what you find out.