Hmm.. No idea why it is slow. Does it help if you add an -ioctl option to the mount command for the CD-ROM (I don't think it will, but you can try)?

You can also try to create an image of the CD (create a BIN/CUE image if possible) and mount the image as drive D in DOSBox:

imgmount D C:\path\to\image.cue -t iso

That should be very fast.

WELCOME TO THE FORUM.

Just a shot in the dark. Are you using dynamic core calamar?

-t cdrom doesn't do anything fancy. (currently)
game probably acces the files in an inefficient way.

Installers might be real-mode and thus crawl along at 3000 cycles with the default settings.

In my dosbox.conf, this are my parameters for CPU config:

1core=auto
2cycles=auto
3cycleup=500
4cycledown=20

Maybe so low cycles? Which would be the best value for cycles?

I tried "-ioctl" option in the cdrom mount command but it's as slow as without it.

Sorry but I'm very newbie with DOSbox.

h-a-l-9000 wrote:

Installers might be real-mode and thus crawl along at 3000 cycles with the default settings.

Aye, some installers go much more quickly if you use higher cycles.

I think the best thing to do is to create a bin/cue image of the CD and then use the IMGMOUNT to mount it. It's easy to make images with MagicDisc, which is free.

Just type "core dynamic" and "cycles max 80%" at the DOSBox Z:\> prompt (without quotes) before running the installer. Try again.