Create ScummVM CDI:s for Dreamcast

TheDig

ScummVM is a neat little application that allows you to run classic point-and-click adventure games on a variety of platforms, including Dreamcast. That means, you can run your old favorites such as Monkey Island, Day of the Tentacle, Leisure Suit Larry, on your Dreamcast! To do so, you need to create a Discjuggler CDI-file (see, guide for burning cdi-files for Dreamcast). In this post I will show you how to do this.

You need the following software:

  • ScummVM plain files for Dreamcast ( https://www.scummvm.org/downloads/ )
  • The game you want to run (I will use Lucasarts The Dig in this guide).
  • BootDreams (for creating the CDI)
  • Discjuggler, if you want to burn the CDI (it can also be run from an SD-card, but that requires that you generate a compatible image-file)

Compile the ScummVM CDI

As aforementioned, in this guide I will compile an image-file of LucasArts The Dig. To do so, I need to extract the ScummVM plain files in a directory, and place the files from The Dig ISO in a subdirectory. Two additional steps are important before you use BootDreams to compile the image:

  1. Remove all “PLG”-files from the ScummVM directory except for the one necessary for your game. For LucasArts-games, you only need the Scumm.PLG file.
  2. Rename the file “SCUMMVM.bin” in the ScummVM directory to “1st_read.bin”.

Your screen should now look something like this:

ScummVM

Now, it is time to compile the image using BootDreams. BootDreams generates a self-booting CDI-file that you can use in your Dreamcast. Point the application to your ScummVM-directory and go with the settings below. Press process, and wait.

BootDreams

Now, the image-file is ready! Before you burn it to a cd-r, you can test it on en emulator such as demul.

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