Hi Derboo, maybe try using imgmount instead.

Or perhaps giving the CD-Rom the correct name (how to is in the readme found at the mount command... atm I don't remember it myself 😀).

Oh, yeah, should've RTFM, sorry. Gonna try that out when I get home.

Tried it now, as it turns out both to no effect...

Please give us your complete mountings, how you installed the game, how you start it and and and...

Real CD in drive / D-Tools image (one if e: the other f:, else the mountings were identical):
First:
mount d: e:\ -t cdrom

After hint from this thread:
mount d: e:\ -t cdrom -label FMJCD

With Imgmount:
imgmount d d:\FMJCD.img -t iso -fs iso

The game is supposed to be runnable from CD by just starting FMJ.EXE, but I also installed it with INSTALL.EXE (you get to chose soundcard settings, but the installer doesn't ask for a destination and just installs to C:\FMJ).

I also noticed the CD's tracks seem to be written in a non-default manner. I first created an Image with CloneCD, which went fine (and the game can be started from that image in VirtualPC), but I now tried to make one with Imageburn, but the program can't read it properly.

have you followed the guide?
60 seconds guide to getting your game to run in DOSBox

I didn't follow it specifically, but did everything right according to it.

where is your C drive then ?

It's physical drive D:
Game is installed in D:\FMJ (host) or C:\FMJ (DOSBox)

It's physical drive D:

Either you didn't post the actual mountings you used, or you're changing
them which is bad per se. Or you did something completely different.

Above are my actual mountings for the CD drive/image. I left out the C: mounting first because I thought it was trivial. The actual line is

mount c: d:\

as I wrote less explicitly above. Nothing was ever changed except the various tries for the CD drive/image.

I start to think by now that it's an emulation issue that can't be solved with mere configuration ...

tried to imgmount .cue not .img ?

I made the image with cloneCD, so I have .img, .ccd, .sub

make a cue/bin with magiciso for example

CloneCD can create cue sheets as well. I wouldn't use "dodgy" tools like MagicISO or UltraISO. cue sheets and/or ccd files contain info about the disc layout, and as DOSBox can't mount ccd directly you have to use a cue sheet. This cue sheet business is only important if the game contains audio tracks however, otherwise an iso image would be sufficient.

Why do you say UltraISO is dodgy? Please, elaborate...